# Apps by David Balderston — readable website library Official website: https://davidb.app/ Content snapshot: October 24, 2026. Product facts and comparisons retain their own source dates. This mirrors canonical visible HTML, not an independent benchmark. ## davidb.app: small, focused apps for iPhone and iPad Canonical source: https://davidb.app/ Independent iPhone and iPad apps by David Balderston: SwingDraw golf swing analyzer, Local Photo Upscaler for private on-device photo enhancement, TennisDraw, BaseballDraw, and more. Independent apps for iPhone and iPad Small apps that do one job well. I’m David. I make focused apps for practicing sports, fixing photos, and everyday tasks. Many of them do all their work right on your device, and none of them want an account just to get started. 19 apps on the App Store One developer Real person on email support Best sellers SwingDraw Golf swing analyzer for iPhone and iPad Draw lines and angles on your golf swing video, trace the swing path, check head and body movement, and compare two swings side by side. Slow motion, frame by frame Swing path trace and body tracking Lines, angles, and side-by-side compare $14.99 once · no subscription Download on the App Store Scan with your iPhone Visit website Local Photo Upscaler Private photo upscaler for iPhone, iPad, and Mac Enlarge small or blurry photos up to 4×, reduce noise, sharpen soft detail, and restore faces. Everything runs on your device, so nothing is uploaded. Upscale up to 4× Denoise, sharpen, and restore faces Works offline, no upload, no account $9.99 once · no subscription Download on the App Store Scan with your iPhone Visit website Before After 4× New on the App Store Video Delay Prop up your phone, do your rep, and watch it back seconds later. Hands-free. Slow motion, drawing tools, and TV output for golf, baseball, tennis, gymnastics, and more. See how it works → Sports & practice 7 Video Delay Prop up your phone, do your rep, and watch it back seconds later. Hands-free. App Store Scan for iPhone Scan with your iPhone Learn more TennisDraw Review your serve and strokes frame by frame, draw on video, and compare practice clips. App Store Scan for iPhone Scan with your iPhone Learn more Basketball Draw Slow down your shot, draw a clear cue, and compare your next attempt. Private video review for players and coaches. App Store Scan for iPhone Scan with your iPhone Learn more SwingDraw Draw over golf swings, compare two videos, and review motion frame by frame. App Store Scan for iPhone Scan with your iPhone Website BaseballDraw Review hitting and pitching video frame by frame, draw on clips, and compare two reps. App Store Scan for iPhone Scan with your iPhone Website Disc Golf Draw Review backhand, forehand and putting videos with slow motion, drawing and session comparison. App Store Scan for iPhone Scan with your iPhone Website PickleballDraw Review practice video with slow motion, drawing tools and clip comparison. App Store Scan for iPhone Scan with your iPhone Website Photos & video 6 Local Video Upscaler Upscale old videos to HD or 4K on your device, preview the result, and keep the original audio. App Store Scan for iPhone Scan with your iPhone Website Local Photo Upscaler Enlarge small photos, reduce noise, and improve soft details privately on your device. App Store Scan for iPhone Scan with your iPhone Website Restore Old Photos Improve clarity, reduce yellow tint, and recover faded color in old photos on your device. App Store Scan for iPhone Scan with your iPhone Website Background Remover Remove backgrounds on device, refine cutouts, and export transparent PNGs. App Store Scan for iPhone Scan with your iPhone Website Blur Photo & Face Censor Blur or cover faces and other private details before you share a photo. App Store Scan for iPhone Scan with your iPhone Website Hair Color Changer Preview hair colors on photos and video with on-device processing. App Store Scan for iPhone Scan with your iPhone Website Everyday tools 6 ClearSpeed GPS A focused GPS speedometer with smoothing and battery-saving controls. App Store Scan for iPhone Scan with your iPhone Website LocalNote Record private voice notes and turn them into clean summaries on device. App Store Scan for iPhone Scan with your iPhone Website Bible AI Read scripture and ask questions alongside the text. App Store Scan for iPhone Scan with your iPhone Website WildFind Build and play scavenger hunts with family and friends. App Store Scan for iPhone Scan with your iPhone Website FODMAP Living Practical low-FODMAP meal guidance when you need a quick answer. App Store Scan for iPhone Scan with your iPhone PrismBinder Scan supported trading cards on device, confirm each match, and keep a local collection. App Store Scan for iPhone Scan with your iPhone Learn more Also on the web Mermaid to Lucid Turn Mermaid flowcharts into editable .drawio files for Lucidchart. CSGO Scouting Scout Counter-Strike teams through match data, player stats, and tactics. Need help with an app? Email me at help@davidb.app . Tell me which app, your device, and what happened, and I’ll get back to you. Email help@davidb.app --- ## Basketball Draw: Shot Analysis for iPhone & iPad Canonical source: https://davidb.app/basketballdraw/ Slow down your shot, draw a clear cue, and compare attempts. Private basketball video review for iPhone and iPad. Pay once. No subscriptions or ads. Basketball Draw Your shot. A closer look. See your shot. Find your next cue. Slow it down. Draw what matters. Compare your next attempt. Basketball video review for players, parents, and coaches. Download on the App Store Scan with your iPhone See how it works ↓ $7.99 once · iPhone & iPad iOS / iPadOS 17.6+. No ads. No subscriptions. One frame. One clear checkpoint. Frame-by-frame playback Draw directly on video Compare two clips Private, on-device library From the first rep to the next Make practice easier to see. Bring a clip from your camera roll or record in the app. Then take your time with the moments that happen too fast on the court. 01 Slow it down. Review at half or quarter speed. Step through your setup, release, and follow-through one frame at a time. 02 Make the cue visible. Draw lines and circles. Add an alignment grid or body overlay to inspect the positions you want to work on. 03 Compare attempts. Open two saved clips together. Match the camera angle and playback position to compare the details that matter. App screenshots use illustrative practice footage of fictional players. Body tracking estimates joint positions; it does not grade your shot or track the ball. Keep something useful Your practice. Your progress. Keep the clips and cues you want to come back to, from free throws to footwork. Organize your reps Save by shot type, add tags, and favorite clips worth revisiting. Remember the adjustment Keep voice notes alongside your clips so the cue is there next practice. Share a clear checkpoint Export an annotated photo or video and send it to your coach using the iOS share sheet. Private by design Your practice stays yours. Videos, notes, and body analysis stay on your device. No account to create. No feed to post to. Share only when you choose. Read the privacy policy → Pay once. All features included. No subscriptions. No in-app purchases. No ads. A few useful answers Before you hit the court. How much does it cost? $7.99 once in the U.S. App Store, checked October 10, 2026. Every feature is included. No subscription or in-app purchases. Apple shows your local price before you buy. Is there a subscription? No. Pay once. There are no subscriptions, in-app purchases, ads, or accounts. Can I use videos I already have? Yes. Import a basketball video from your library, or record a new clip in the app. A steady camera, good lighting, and one clearly visible player make review easier. Does it automatically grade my shot? No. You choose the checkpoints to review. Body tracking estimates joint positions; it does not give a shooting score, track the ball, or decide whether a shot went in. Does my video leave my device? Your library and analysis stay on your device unless you choose to export or share. Photos, other apps, and device backups follow your own settings. Does it work on iPad? Yes. Basketball Draw is built for iPhone and iPad with iOS or iPadOS 17.6 or later. The larger screen gives you more room to review and compare clips. Film a useful shot review. Keep the camera view consistent and share the question with your coach. Read the filming guide . Current app facts and limits · Compare video review and coaching apps Need a hand? Setup tips, permissions, exports, or a question about your clips. Basketball Draw support → --- ## Basketball Draw Support Canonical source: https://davidb.app/basketballdraw/support/ Get help with Basketball Draw: importing and recording videos, slow motion, drawing, comparing clips, permissions, exports, and purchases. davidb.app / Basketball Draw / Support Basketball Draw Support Email help@davidb.app with your iPhone or iPad model, iOS version, and what happened. A description or screenshot is usually a good place to start. Only attach a video if you are comfortable sharing it and have permission from anyone shown. Start with one shot Tap + in Library to import a video, or Record to film practice. Save the clip, open it, and use the frame arrows to find your release. Tap the playback speed control for half or quarter speed. Draw a cue Tap Draw for lines and circles. Open Overlays for an alignment grid or body tracking. Tracking works best with one clearly visible player, a steady camera, and good light. Joint positions are estimates, so check them against the video. Compare two clips Tap Select in Library, choose two clips, then Compare. Use clips filmed from the same angle and match the playback position before reviewing the movement. Keep your practice organized Open Details to choose a shot type, add tags, or record a voice note. Favorite the clips you want to revisit. Camera, microphone, or Photos trouble Open iOS Settings, then Apps → Basketball Draw (or Basketball Draw directly on older iOS versions) to review permissions. Camera access is needed for recording; the microphone is used for video sound and voice notes. You can import a saved video without enabling the camera. Export and protect your clips Use the share control to export an annotated photo or video to Photos, Files, or another app. Keep exported copies of important clips. The app library is stored locally; removing the app removes its local data unless it can be restored from your device backup. Exported copies and backups are managed separately. Purchases and refunds Basketball Draw is a paid-upfront app with no subscriptions or in-app purchases. Apple handles purchases and refund requests at reportaproblem.apple.com . More from Basketball Draw About the app · Support · Privacy · Terms --- ## Basketball Draw Privacy Policy Canonical source: https://davidb.app/basketballdraw/privacy/ Basketball Draw processes videos and body analysis on your device. No accounts, ads, analytics, or tracking SDK. Learn about permissions, sharing, backups, and deletion. davidb.app / Basketball Draw / Privacy Policy Basketball Draw Privacy Policy Effective October 3, 2026 Your practice stays yours. Basketball Draw has no account, advertising, analytics, or tracking SDK. Your videos and analysis are processed on your device. App data Basketball Draw does not collect your videos, photos, voice notes, tags, body analysis, or usage activity on our servers. Saved clips, drawings, notes, and settings are held locally on your device. Permissions Camera access records practice. Microphone access adds video sound and voice notes. Photos access lets you choose videos or save exports. Permission is requested when the related feature needs it. You can change permissions in iOS Settings. Sharing and backups You control exports to Photos, Files, and other apps. Those destinations and iOS backups follow their own privacy settings. Local app data may be included in a device backup according to your settings. Deletion Delete clips in Library to remove them from the app. Removing the app removes its local data. Exported copies and backups must be managed separately. Support email If you email support, we receive the information you choose to include and use it to respond and investigate your issue. Do not send practice footage unless you are comfortable sharing it and have permission from the people shown. To ask about or request deletion of support correspondence, email help@davidb.app . This website This policy covers the Basketball Draw app. The website is hosted on Cloudflare, which processes routine request information for delivery and security. Website data handling is described in the davidb.app privacy policy . Changes and contact If this policy changes, the effective date above will be updated. Contact David Balderston at help@davidb.app with privacy questions. More from Basketball Draw About the app · Support · Privacy · Terms --- ## Basketball Draw Terms of Use Canonical source: https://davidb.app/basketballdraw/terms/ Terms of use for Basketball Draw, including Apple’s standard license agreement and information about recordings and body tracking. davidb.app / Basketball Draw / Terms of Use Basketball Draw Terms of Use Effective October 3, 2026 Basketball Draw is a video review tool provided by David Balderston. Your App Store purchase is governed by Apple’s standard Licensed Application End User License Agreement . Reviewing your practice Body tracking is an estimate and can be affected by lighting, occlusion, camera placement, and motion blur. The app is not a substitute for a qualified coach or medical professional and does not guarantee a performance result. Your recordings Record and share only media you have the right to use. Get appropriate permission from people in your recordings, especially when filming youth players. Keep exported copies of important clips. Contact For help, contact help@davidb.app . More from Basketball Draw About the app · Support · Privacy · Terms --- ## Video Delay Instant Replay Cam for iPhone & iPad | David Balderston Canonical source: https://davidb.app/videodelay/ A 1–60 second delayed camera replay for practice. Save reps, slow motion and TV output on iPhone & iPad. $4.99 once in the U.S.; no subscription. Video Delay Watch your last rep. Video Delay Instant Replay Cam by David Balderston turns your iPhone or iPad into a hands-free delayed camera. Choose 1–60 seconds, do your rep, then watch it on screen. The U.S. App Store price is $4.99 once, with no subscription or in-app purchases. Download on the App Store Scan with your iPhone $4.99 once. No subscription, no account, no ads. A delayed video mirror you set up once. Video delay means the screen shows what the camera saw a few seconds ago. Coaches run it on gym TVs; now it’s the phone in your bag. No record button, no scrubbing, and nobody filming you. Prop it up Lean your phone or iPad against your bag, a fence, or a tripod where it can see you. Pick a delay Anywhere from 1 to 60 seconds. Enough time to finish the rep and look up. Rep, then look The replay keeps running. Every rep shows up on screen a few seconds after you do it. New to delayed replay? Read the iPhone, iPad and TV setup guide , or learn when to save a rep and use slow motion . See it in the app. Screens from the App Store listing, captured in the real app. Practice footage shows fictional athletes. An instant replay camera for your sport. Any practice where you can’t see yourself while you move. A few setups that work well: Golf Prop the phone behind you, down the line, or face-on at hip height. Hit, turn, and watch the swing you just made. Draw a line on the shaft plane and it stays put all session. Try a 5–8 s delay Baseball & softball Lean it on the cage netting or a bucket behind the tee. Every swing plays back while you reset, and a saved rep slows to ⅛ speed to check your load and contact. Try a 4–6 s delay Gymnastics & cheer Set an iPad at the end of the floor or beam. The delay gives the athlete time to finish the pass and walk back, then watch it on the iPad or on a TV over AirPlay. Try a 15–30 s delay Dance Use it as a delayed video mirror. Run the eight-count, look up, and see your lines and spacing from the front, even on the turns a wall mirror can’t show you. Try a 8–20 s delay Pickleball & tennis Lean the phone on the fence behind the baseline while you drill serves, dinks, or third-shot drops. Look over after each ball to check paddle face and footwork. Try a 6–10 s delay Weightlifting form Set the phone side-on at hip height for squats, deadlifts, and cleans. Check depth and bar path between sets without anyone filming, and save the reps you want to compare. Try a 10–20 s delay Built for practice, not for editing. No timeline and nothing to trim. Just the last few seconds, on repeat, with the tools to study the ones that matter. 1–60 s Any delay you want Half-second steps up to 10 seconds, then whole seconds up to a full minute. Long enough to finish the rep and turn around. 240 fps Real slow motion Record at 30, 60, 120, or 240 fps where your camera supports it, then study a saved rep frame by frame, down to ⅛ speed. Save Keep the good ones Tap Save rep right after a replay to keep the last 5, 10, 15, or 30 seconds, in the app and in Photos if you like. ∠ 42° Lines, angles, circles Draw right on the video to check a swing plane or a knee angle. Lines show their angle and stay put for your next session. TV Put it on the big screen AirPlay or an HDMI adapter shows the delayed replay full screen while the controls stay on your phone. 0 No account, no tracking Video stays on your device. Nothing is uploaded, and nothing is kept unless you tap Save rep. Also: front or back camera, 0.5× to telephoto lenses on iPhones that have them, pinch to zoom, tap to focus, a mirror option, live and delayed side by side, and a screen that stays awake. If the phone gets hot, the frame rate steps down on its own and comes back when it cools. This app uses one device’s camera and a delay of up to 60 seconds. It does not provide automatic form scores or coaching advice. Frame rates depend on the camera and device; 240 fps is not available on every camera. A sports replay app for any sport where form matters. If you can prop up a phone near it, you can replay it. Golf Baseball & softball Tennis Pickleball Basketball Volleyball Gymnastics Cheer Dance Weightlifting CrossFit Martial arts Soccer Yoga Delayed replay for disc golf net practice Set a 1–60 second camera delay, make a throw, then watch your movement. Save the last 5, 10, 15, or 30 seconds for a closer look with slow motion and drawing tools. Use Video Delay for the camera replay during a rep. For importing, organizing, and comparing saved throwing clips, see Disc Golf Draw . Hands-free delayed viewing for archery Place your iPhone or iPad on a stable stand behind the shooting line and outside arrow paths, following your range's rules. Start Video Delay and choose a delay from 1 to 60 seconds, long enough to finish the shot and look at the screen safely. The camera view plays back continuously on that delay, so you can watch the shot without touching the device between shots. If you want to keep a clip, use Save rep after watching it. Slow motion and frame-by-frame review are available for saved reps. Questions What is a video delay app? It’s a camera that shows you what happened a few seconds ago instead of right now. Set your phone where it can see you, do your swing or routine, and look up: the replay of that rep is already playing. Gyms and coaches run the same idea as a delayed video mirror on a big TV. Video Delay does it on the iPhone or iPad you already have. What delay should I use? Time one rep, then add the time it takes you to look at the screen. Golf swings and batting reps usually work at 4 to 8 seconds. Tumbling passes, dance combinations, and full sets need 15 to 30 seconds. You can change it any time, in half-second steps up to 10 seconds and whole seconds up to 60. How much does it cost? $4.99 on the U.S. App Store, once. There’s no subscription, no account, and nothing extra to buy inside the app. Is there a subscription? No. Video Delay is a one-time purchase. There’s no account, no ads, and nothing extra to buy inside the app. Can a coach use it with a team? Yes. Set an iPad at the end of the line or send the replay to a TV, and pick a delay long enough for each athlete to finish and walk over. Each athlete sees their own rep while the next one goes, and nothing is kept unless you tap Save rep. Does it work on iPad? Yes. It runs on iPhone with iOS 17 or later and on iPad with iPadOS 17 or later. A propped-up iPad makes a great big-screen mirror. Does it need an internet connection? No. Everything happens on your device, so it works at the range, on the field, or in a gym with no signal. Where does my video go? Recent video is kept briefly on your device so the replay can play, then it’s overwritten. When you leave the app, it’s deleted. The only video that’s kept is a rep you save, in the app and, if you turn it on, in Photos. Can I watch on a TV? Yes. Use AirPlay screen mirroring or an HDMI adapter. The TV shows the delayed replay full screen, with your drawings, while the controls stay on your phone. Why did the frame rate drop? The phone got hot. To keep going, the app steps down to a lower frame rate and goes back up after it cools. Shade, a fan, or taking off a thick case all help. Get Video Delay on the App Store. Questions or ideas? Email help@davidb.app . Support, privacy, and terms are below. Support · Privacy policy · Terms Download on the App Store Set up a hands-free instant replay for practice Frame the whole movement. Prop up your iPhone or iPad where you can turn to see it after the rep. Start with a short delay. Choose enough time to finish the movement and look back at the screen. Repeat one cue. Keep the camera still and compare the same part of each rep. Read the instant-replay setup guide for golf, baseball, dance, and gym practice. The delayed camera view is different from importing and annotating an existing video. For a larger practice station, follow the iPhone, iPad and TV setup guide . To keep a useful moment, see Save rep, slow motion and Photos copies . --- ## Video Delay Support Canonical source: https://davidb.app/videodelay/support/ Get help with Video Delay: Instant Replay Cam. Email support, setup tips, and answers about saving reps, slow motion, drawing, and TV output. davidb.app / Video Delay / Support Video Delay Support Email help@davidb.app . Include your device (for example, iPhone 16 Pro), your iOS version, and the app version (shown at the bottom of Settings in the app). I read every message and usually reply within a day or two. Getting started Prop up your iPhone or iPad where it can see you, set the delay with the orange button at the top, do your rep, and turn around to watch it. The controls fade after a few seconds; tap the screen to bring them back. Common questions How do I keep a rep? Tap Save rep right after you watch it. It saves the last 5, 10, 15, or 30 seconds of the replay. Change the length in Settings. To also add reps to Photos, turn on “Also save reps to Photos.” How do I use slow motion? Open a saved rep from the film button. Use the speed buttons (down to ⅛×), the frame-step buttons, or drag the scrubber. Record at 120 or 240 fps for the smoothest slow motion. How do I draw on the video? Tap the pencil, pick line, angle, or circle, and drag on the video. Drag a dot to adjust a shape. Lines show their angle. Your drawings stay in place for your next session. How do I show it on a TV? Use Screen Mirroring (AirPlay) to an Apple TV or AirPlay-compatible TV, or connect an HDMI adapter. The TV shows the delayed replay full screen. Why did the frame rate drop? The phone was getting hot. The app lowers the frame rate to keep running and raises it again after it cools. Shade, a fan, or taking the phone out of a thick case helps. The camera doesn’t start. Open the Settings app, then Privacy & Security › Camera, and turn on Video Delay. If another app is using the camera, close it and try again. Saving to Photos doesn’t work. Open the Settings app, then Privacy & Security › Photos › Video Delay, and allow adding photos. The app only asks to add videos; it never reads your library. Refunds Purchases are handled by Apple. To request a refund, visit reportaproblem.apple.com . More Privacy policy · Terms of use · About Video Delay Step-by-step practice guides Set up delayed replay on iPhone, iPad or a TV Save a rep, review slow motion and add a Photos copy Hands-free instant replay for sports practice --- ## Video Delay Privacy Policy Canonical source: https://davidb.app/videodelay/privacy/ Video Delay collects no data: no account, no analytics, no ads, no tracking. Video stays on your device and is saved only when you choose. davidb.app / Video Delay / Privacy Video Delay Privacy Policy Effective September 27, 2026 The short version: Video Delay doesn’t collect any data. There’s no account, no analytics, no ads, and no tracking. Your video stays on your device. Camera The app uses your camera to show you a delayed replay. While the camera is on, recent video is kept temporarily on your device so it can be played back and so you can save a rep. That temporary video is overwritten continuously and is deleted when you leave the app. It never leaves your device. Saved reps When you tap Save rep, the app saves that clip in its own storage on your device. You can delete saved reps at any time in the app, and they’re removed if you delete the app. Photos If you turn on “Also save reps to Photos,” the app adds saved clips to your photo library. It asks only for permission to add to Photos. It never reads, uploads, or changes your existing photos or videos. Drawings and settings Lines you draw and your settings are stored on your device only. Sharing If you share a rep, it goes only where you send it, using the iOS share sheet. Crash reports The app contains no analytics or crash-reporting code. If you’ve chosen to share analytics with app developers in iOS Settings, Apple may provide me with anonymous crash reports and usage statistics. You can change this in Settings › Privacy & Security › Analytics & Improvements. Children The app collects no data from anyone, including children. This website This policy covers the app. The davidb.app website is covered by the website privacy policy . Changes If this policy changes, I’ll update it here and change the date above. Contact David Balderston, help@davidb.app Optional analytics on this website Google Analytics loads only if you allow it using the website analytics choices. It measures page visits and App Store link clicks; it does not receive your app photos, videos, or recordings. Page URLs are recorded without query strings, and advertising features and Google Signals are disabled in the website configuration. You can decline or withdraw through “Website analytics choices” in the footer. Withdrawal stops future Google Analytics collection and removes this site’s Google Analytics cookies. Global Privacy Control and Do Not Track are respected. The site also uses Cloudflare for hosting and its separate website statistics. --- ## Video Delay Terms of Use Canonical source: https://davidb.app/videodelay/terms/ Terms of use for Video Delay: Instant Replay Cam, licensed under Apple’s standard EULA. davidb.app / Video Delay / Terms Video Delay Terms of Use Effective September 27, 2026 Video Delay: Instant Replay Cam is licensed to you under Apple’s standard Licensed Application End User License Agreement . Use it safely Set up your device where it can’t fall or be hit, and stay aware of your surroundings while you train. Video Delay is a practice tool. It doesn’t give medical, fitness, or coaching advice. Contact David Balderston, help@davidb.app --- ## Privacy on davidb.app Canonical source: https://davidb.app/privacy/ How the davidb.app website handles hosting data, optional Google Analytics, and email. davidb.app / Privacy Website Privacy Policy Effective September 27, 2026 This page covers the davidb.app website. Each app has its own privacy policy, linked from its App Store page and its website. For Video Delay, see the Video Delay privacy policy . Hosting The site is hosted on Cloudflare. To deliver pages and protect the site from abuse, Cloudflare processes technical information such as your IP address, browser type, and the pages requested. I don’t use this to identify you. Optional analytics If you allow it, the site uses Google Analytics to count visits and see which App Store links people tap. Analytics loads only after you choose “Allow analytics,” and it stays off if your browser sends a Global Privacy Control or Do Not Track signal. Advertising features and Google signals are turned off. You can change your choice at any time with the “Website analytics choices” button at the bottom of pages where analytics is enabled. Email If you email help@davidb.app, your message is forwarded to my personal inbox. I use it only to reply to you and to fix problems you report, and I don’t add you to any mailing list. What I don’t do No advertising or ad tracking. No selling or sharing of personal information. No accounts or sign-ups on this site. Contact David Balderston, help@davidb.app --- ## TennisDraw: Tennis Video Analysis App for iPhone & iPad Canonical source: https://davidb.app/tennisdraw/ Review tennis serves and strokes on iPhone and iPad. Draw on video, compare clips, and see body movement with on-device pose analysis. Tennis video analysis · by David Balderston See your game. One frame at a time. Take a closer look at your serve, forehand, or backhand. Slow it down, draw what matters, and compare your practice clips. Download on the App Store Scan with your iPhone $7.99 once in the U.S. App Store. No subscription, account, or ads. iPhone and iPad with iOS / iPadOS 17.6 or later. 01 / LOOK CLOSER Find your frame. Record a practice session or import a clip. Adjust playback speed and step through the movement frame by frame. 02 / MAKE IT CLEAR Draw your point. Draw lines and circles directly on the video. Inspect your movement with body pose overlays and angle guides. 03 / KEEP THE LESSON Take it to practice. Organize clips with tags and notes. Export annotated video to Photos or share it with your coach. Two clips. A clearer view. Compare the movement you’re working on. Review two clips together or use independent timelines to line up the moments you want to study. Look at preparation, contact, and follow-through at your own pace. Body tracking is a visual reference. TennisDraw does not measure ball speed, spin, or racket speed, and does not provide automatic coaching scores. Your practice stays yours. Your videos, drawings, notes, and analysis are stored on your device. TennisDraw has no account, advertising, or analytics SDKs. You decide what to export or share. Read the privacy policy Before you buy A few practical answers. How much does TennisDraw cost? $7.99 once in the U.S. App Store, checked October 10, 2026. All tools are included. There are no subscriptions or in-app purchases. Apple shows the price for your country before you buy. Can I analyze a serve or groundstroke? Yes. Record a practice clip or import one from Photos, then slow it down and step through the frames. Draw a line or circle on a position you want to compare, add a note, and review another attempt alongside it. How should I film a practice clip? Use a steady camera, good light, and one clearly visible player. Keep the whole body in the frame. For two-clip comparison, keep the camera position and angle consistent, then line up the same point in the movement, such as contact. Ask your coach which view helps with the adjustment you are working on. Does it track the ball or score my technique? No. Body overlays estimate joint positions as a visual reference. TennisDraw does not measure ball speed, spin, or racket speed, and does not give automatic coaching scores. Can I share a review with my coach? Export an annotated video to Photos or share it through the iOS share sheet. You choose what leaves your device. Your original clip stays in your library. Setup, permissions, and export help · More apps from David Bring your next practice into focus. Download TennisDraw $7.99 once · iPhone and iPad · iOS / iPadOS 17.6+. Apple shows your local price before you buy. Film a useful tennis practice clip Keep the camera view consistent, compare the same checkpoint, and share the question with your coach. Read the filming guide . Current app facts and limits · Compare video review and coaching apps --- ## TennisDraw Support Canonical source: https://davidb.app/tennisdraw/support/ Get help importing, analyzing, organizing, and exporting tennis video in TennisDraw. Here to help TennisDraw support Questions, a bug, or an idea for your next practice session? Email help@davidb.app . Include your device model, iOS version, and what happened. Please send a video only if you want us to see it and have permission to share it. Start with a clip Tap + in Library to choose a tennis video, or open Record to film a session. Open a saved clip to review it, adjust speed, and step through frames. Draw and compare Use the drawing tools to mark an angle, path, or position. In Compare , choose two clips and use their independent controls to line up the same point in the movement. Get a clearer body overlay Keep one player’s full body in view, use steady framing and good light, and avoid obstructed limbs. Pose overlays are estimates and can be incomplete or inaccurate. They do not track the ball or racket. Camera, microphone, and Photos permissions Check Settings → Apps → TennisDraw if recording or saving is unavailable. Camera and microphone access support recording; Photos access supports selecting and saving videos. The system may ask for access when you first use a feature. Keep your videos safe Allow an export to finish before closing the app. Export anything you want to keep before deleting the app or replacing your device. TennisDraw has no account or app-managed cloud backup. Purchases TennisDraw is available on the App Store for one upfront purchase, with no in-app purchases or subscriptions. Apple handles payment and any eligible refunds. For purchase support, visit Apple’s purchase support . Device requirements iPhone or iPad with iOS/iPadOS 17.6 or later. Core video review and on-device body analysis work without signing in. --- ## TennisDraw Privacy Policy Canonical source: https://davidb.app/tennisdraw/privacy/ How TennisDraw handles videos, notes, permissions, and support messages. Last updated October 12, 2026 Your practice. Your data. TennisDraw is an on-device tennis video review app developed by David Balderston. No account is required. Videos and analysis TennisDraw stores your imported or recorded videos, drawings, tags, notes, and body pose analysis locally on your device. Analysis uses bundled software and Apple’s on-device capabilities. The app does not send your selected tennis media or analysis to us or to an analysis service. No advertising or analytics SDKs TennisDraw does not include advertising or analytics SDKs and does not track you across other companies’ apps or websites. We do not sell your personal information. Permissions you control Camera: to record practice video. Microphone: to include sound in videos and record voice notes. Photos: to select videos and save exports. You can change permissions in iOS Settings. Declining a permission may prevent its associated feature from working. Exports, sharing, and backups When you choose to export or share, iOS sends that content to the destination you choose. That destination’s policies apply. iOS backups and Photos syncing are controlled by your device and Apple account settings; TennisDraw does not provide a separate cloud backup service. Support messages If you contact support by email, we receive the address, message, and attachments you choose to send. We use them to respond and investigate the issue. Do not send sensitive material you do not want us to receive. Contact us if you want your support correspondence deleted, subject to any records we need to retain. Purchases and Apple services Apple processes App Store purchases. We do not receive your payment card details. Apple may provide aggregated sales information and diagnostics according to your Apple settings and Apple’s privacy policy. Deleting your data You can delete clips from the library. Deleting TennisDraw removes its app data from that device. Copies you exported, shared, or backed up are managed separately by you and the destination provider. Export videos you want to keep before removing the app. Children’s information No age, account, or profile information is requested. If a practice video includes another person, share it only when you have the appropriate permission. This website Optional Google Analytics measures visits and App Store link clicks on these website pages only after you allow it. You can decline analytics or change your choice at any time. Cloudflare processes ordinary request information to deliver and protect the website. See the davidb.app website privacy policy for more information. Contact and updates Questions about privacy can be sent to help@davidb.app . We will update this page and its date when the policy changes. --- ## TennisDraw Terms of Use Canonical source: https://davidb.app/tennisdraw/terms/ TennisDraw uses Apple's Standard End User License Agreement. App license Terms of use TennisDraw is licensed under Apple’s Standard End User License Agreement. Read Apple’s Standard End User License Agreement . About TennisDraw TennisDraw provides tools for reviewing tennis video. Pose overlays are estimates for visual review. The app does not provide automatic coaching or measure ball speed, spin, or racket speed. Get in touch For app or purchase questions, visit TennisDraw Support . Read our privacy policy for information about videos, permissions, and support messages. --- ## PrismBinder: Palworld Card Scanner & Collection for iPhone Canonical source: https://davidb.app/prismbinder/ Scan Palworld cards, check listing-price estimates, and keep your collection organized on your device with PrismBinder. FOR THE CARDS YOU KEEP Scan your cards. Keep your collection. All together. Meet PrismBinder, your companion for Palworld cards. Scan a card, check its listing-price estimate, and give every find a place in your collection. Download on the App Store ↗ Scan with your iPhone Free to download. A weekly or yearly subscription is required to scan cards and manage your collection. Apple shows current localized prices before purchase. iPhone & iPad · iOS 17.0+ · No account needed THE BINDER, REIMAGINED 01 / 02 Your next great find belongs here. Actual app screens · illustrative collection Scan on your device Review every match Keep your collection close FROM FIRST SCAN TO FULL BINDER Less keeping track. More collecting. One place for the cards you have, and the details you want to remember. 01 / SCAN Find the right card. Use your camera or a photo to read the printed card number. Review the match and choose the right printing before you save. 02 / CHECK Put prices in context. See cached active-listing estimates and daily price history. Open marketplace comparisons when you want a closer look. 03 / COLLECT Make it your binder. Keep quantities, browse the catalog, and follow your collection’s estimated value. Your saved collection stays on your device. Price estimates reflect asking prices from active listings, not completed sales, appraisals, or guaranteed values. YOUR CARDS. YOUR BUSINESS. A collection without an account. Card recognition happens on your device. Your photos aren’t uploaded for scanning, and your collection is stored locally. No ads. No cross-app tracking. Read our privacy policy ↗ A question about your binder? Find help with scanning, prices, and subscriptions. Visit support ↗ Scanning and collection management require a subscription. Current prices and renewal terms are shown in the app before purchase. --- ## Support | PrismBinder Canonical source: https://davidb.app/prismbinder/support/ Support for PrismBinder, the independent card collection companion. PRISMBINDER / SUPPORT PrismBinder Support Get help with scanning, catalog updates, price history, collections, and subscriptions. Scanning a card Use clear, even lighting and keep the printed card number visible. You can also choose a photo from your library. Recognition happens on your device. Catalog or prices are unavailable Open Settings and use Refresh Catalog or Refresh Prices & History while connected to the internet. The app keeps the last successful price snapshot for offline use. Subscriptions Purchases are handled by Apple. Use Restore Purchases in the app if access is missing, or manage the subscription in your Apple Account settings. Contact support Email help@davidb.app . Include the app version shown in Settings and a short description of what happened. Do not send card photos or other personal information unless it is necessary to explain the issue. Read the Privacy Policy . Price estimates are informational. Displayed values are asking-price estimates, not completed-sale prices, appraisals, or guarantees. --- ## Privacy Policy | PrismBinder Canonical source: https://davidb.app/prismbinder/privacy/ Privacy Policy for PrismBinder, the independent card collection companion. PRISMBINDER / PRIVACY POLICY Privacy Policy Updated October 12, 2026 PrismBinder is designed to work without an account and without advertising or cross-app tracking. Photos and card recognition Camera frames and photos you choose are processed on your device using Apple Vision. We do not upload or store your card photos. Collection data Your saved cards, quantities, and collection history remain in the app's local storage on your device. We do not receive them. Removing the app removes this local app data, subject to your device backups and Apple's policies. Network requests The app downloads card catalog records and artwork from Palworld TCG Play Hub and cached listing-price snapshots from this service. Those requests may expose ordinary connection information, such as your IP address and user agent, to the service receiving the request. The app does not use that information to build a profile or track you across apps or websites. If you open a marketplace comparison, the app opens a third-party website. That site handles data under its own privacy policy. Purchases and diagnostics Apple processes subscriptions through StoreKit. We do not receive your payment-card details. Apple may provide transaction status so the app can determine whether access is active. If you choose to share diagnostics with Apple, Apple may make diagnostic information available to the developer under Apple's policies. Data collection and sharing We do not collect personal data through the app, sell personal data, or share personal data for advertising. Children The app is a card-collection utility and is not directed specifically to children. It does not provide social features, messaging, or user-generated content. This website This website is hosted by Cloudflare, which processes ordinary connection information to deliver and protect the site. Optional Google Analytics measures website visits and App Store link clicks only after you allow it. Advertising features are disabled. You can decline analytics or change your choice at any time. See the website privacy policy for details. Contact Questions about this policy can be sent through the support page . Independent utility. PrismBinder is an independent card-collection utility. --- ## How to film tennis video for a useful practice review | Apps by David Balderston Canonical source: https://davidb.app/tennisdraw/guides/record-tennis-video/ A practical TennisDraw filming guide: frame serves and strokes, keep camera views consistent, compare checkpoints, and share context with your coach. Practical guide How to film tennis video for a useful practice review By David Balderston · Updated October 10, 2026 A useful tennis video starts with a steady, repeatable view and one question. Keep the full action in frame, compare the same moment between attempts, and send your coach the camera view and context with the clip. TennisDraw helps you inspect footage; it does not decide whether a technique is correct. By David Balderston, developer of TennisDraw. Updated October 10, 2026. This is a filming and review checklist, rather than personalized tennis instruction or a claim that a video overlay measures ball speed. Pick a question before recording Decide what you want to show a coach: a serve checkpoint, contact during a groundstroke, a volley sequence, or a change between two attempts. A clip that answers one question is easier to review than a long recording of unrelated repetitions. Ask your coach which view is most useful for that question. Keep any tripod or support outside the playing area. Get permission before recording other people, and avoid framing unrelated players when you can. Follow the venue’s recording rules. Frame the whole movement For a serve, leave room for the player, racket, toss, and follow-through. A crop that cuts off the racket or ball removes context you may want at the checkpoint. For a groundstroke, include the preparation and recovery rather than only the moment you expect to be contact. Use a stable support and useful lighting. High-frame-rate capture can provide more frames to inspect when your camera supports it, but poor light and motion blur can still hide detail. A higher frame rate does not itself prove that a movement is measured accurately. Make before-and-after clips comparable Write down camera position, height, distance, orientation, and zoom. Keep those choices the same between attempts where possible. Perspective changes apparent angles and distances; a new camera position can make a similar movement look different. Retain the original files. Add a short note describing the session and the question so a later comparison has context. Do not infer a precise 3D angle or speed from an ordinary 2D view. Review one checkpoint in TennisDraw Record or import a clip, then slow playback or step frame by frame to the moment you want to discuss. Add one useful line, arrow, or angle. A body overlay can help you locate visible positions, but it remains a visual reference affected by the camera view and tracking quality. Compare a second clip at the same point in the action. Align the checkpoint you want to examine rather than matching only the number of seconds since recording began. If you are uncertain which moment matters, send a slightly longer section so the coach can see the motion around it. Share the question with the video Export an annotated frame or video and include the stroke, camera view, date, and question. The recipient can watch a normal exported media file without owning TennisDraw. Keep the original clip for a different interpretation or a later review. TennisDraw does not provide remote coaching accounts, cloud team libraries, ball-speed measurements, or automatic technique diagnosis. Choose a shared coaching platform when the ongoing relationship and team organization are the main job. Copy this session note Stroke / checkpoint: Camera position, height, distance, and zoom: What changed between attempts: Question for the coach: Original file, app version, and annotated export: App facts before you buy TennisDraw is $7.99 once on the U.S. App Store, with no subscription or in-app purchases. It requires iOS or iPadOS 17.6 or later. Footage and review stay on device unless you share. These purchase facts were checked against the Apple listing Scan with your iPhone on October 10, 2026. See TennisDraw’s workflow , full product facts , and support . Explore the apps --- ## How to film a basketball shot for video review | Apps by David Balderston Canonical source: https://davidb.app/basketballdraw/guides/record-basketball-video/ A practical Basketball Draw guide to framing the whole shot, comparing the same moment, making a clear annotation, and sharing useful context. Practical guide How to film a basketball shot for video review By David Balderston · Updated October 10, 2026 For a useful basketball shot comparison, film the whole movement from a steady view and repeat that view between attempts. Keep the player, ball, release, and landing visible. Choose one question with your coach, then review the same point in two clips. By David Balderston, developer of Basketball Draw. Updated October 10, 2026. This guide explains filming and review, rather than prescribing shooting form or claiming that a body overlay diagnoses a player. Choose a safe camera position Place the camera outside the playing area, where it will not interfere with players or rebounds. Ask your coach which view helps answer the question. A side view may make a particular position easier to see, while a different view may be useful for a different question; no single camera angle captures every aspect of a shot. Get permission before recording others. Follow the gym’s recording rules, and avoid framing unrelated players where possible. Capture the complete attempt Leave enough space for the ball and raised arms through release, plus the player’s lower body and landing. Start before the shot preparation and end after the action settles. A tight crop can hide context, especially when you later zoom into a checkpoint. Use a stable support and useful light. Higher-frame-rate recording can give you more frames to inspect when supported, but poor lighting and shutter blur can still hide the ball or hands. Keep the original instead of relying on a compressed message attachment. Keep the comparison conditions consistent Record camera height, distance, orientation, and zoom. Keep those choices consistent between attempts. When comparing a repeatable practice sequence such as free throws, note any change in the session so the viewer knows what the clips represent. Perspective can change apparent angles and distances. A line drawn on video is a 2D visual reference, rather than a calibrated measurement of joint mechanics. A body overlay can miss or misplace a point when framing, movement, or visibility is poor. Review one moment in Basketball Draw Record or import footage, then use slow motion or frame stepping to locate the checkpoint. Add a line, angle, arrow, or note that answers the question. Keep the annotation simple enough to leave the movement visible. Load a second clip and compare the same point in the shot, such as the moment your coach chose around release. Two clips can have different lead-in lengths, so matching elapsed time alone may compare different moments. Share context, not just a marked-up frame Export a normal annotated image or video. Include the camera view, practice context, checkpoint, and question when sending it to a coach. They can watch the exported file without buying the app. Retain the originals for a different interpretation or a later comparison. Basketball Draw does not provide automatic fault diagnosis, calibrated 3D analysis, shot-result measurements, or a remote coaching service. If you need team accounts, cloud libraries, and ongoing athlete messaging, compare coaching platforms and local Draw apps . Copy this session note Practice context / checkpoint: Camera position, height, distance, and zoom: What changed between attempts: Question for the coach: Original file, app version, and annotated export: App facts before you buy Basketball Draw is a released iPhone and iPad app, priced at $7.99 once in the U.S. App Store. No subscription or in-app purchases are required. It requires iOS or iPadOS 17.6 or later. Footage stays on device unless you share. Purchase facts were checked against the Apple listing Scan with your iPhone on October 10, 2026. See the Basketball Draw workflow , full product facts , and support . Explore the apps --- ## Sports video analysis apps: Draw apps, Onform, and CoachNow | Apps by David Balderston Canonical source: https://davidb.app/compare/sports-video-analysis-apps/ Compare released golf, baseball, tennis, and basketball Draw apps with cloud coaching platforms, including prices, device requirements, and limits. Practical guide Sports video analysis apps: Draw apps, Onform, and CoachNow By David Balderston · Updated October 10, 2026 Choose a local Draw app when you want to review and annotate footage on your own iPhone or iPad. Choose a coaching platform when shared accounts, cloud libraries, and ongoing coach-athlete communication are the main job. Those workflows overlap in video tools but differ in how people work together. Written by David Balderston, developer of the Draw apps below. This is a workflow and purchase comparison, not an independent test of coaching effectiveness or tracking accuracy. Sources and U.S. prices were checked on October 10, 2026. Released Draw apps Workflow and purchase comparison App Sport and review workflow U.S. price Minimum iPhone/iPad OS SwingDraw Golf; frame stepping, drawing, body and swing-path overlays, comparison, and notes $14.99 once 17.6 BaseballDraw Hitting and pitching video; drawing, body overlays, comparison, and notes $7.99 once 18.0 TennisDraw Tennis clip review; drawing, body overlays, comparison, and notes $7.99 once 17.6 Basketball Draw Basketball clip review; drawing, body overlays, comparison, and notes $7.99 once 17.6 All four are available on Apple’s App Store, have no subscription or in-app purchases, and keep their video libraries on device unless the user exports or shares. They do not provide team cloud libraries, cross-device cloud sync, or remote coaching accounts. Sources: Apple listings for SwingDraw Scan with your iPhone , BaseballDraw , TennisDraw , and Basketball Draw . When a local review tool is enough You may need only to show one checkpoint during a lesson, compare two practice attempts, or send a short annotated video. A local app lets you do that without organizing a team account or buying a recurring plan. The exported media is a normal photo or video; the recipient does not need to buy the app to watch it. Filming matters. Keep the camera view consistent, retain the original, and align the same point in the movement before comparing. See the golf filming checklist , baseball guide library , tennis filming guide , and basketball filming guide . When Onform or CoachNow is a better fit Additional comparison Platform Main reason to consider it Current entry points to check Onform Coach-athlete messaging, cloud video feedback, organized libraries, and plan-dependent capture/measurement integrations Athlete Standard $9.99/month or $99.99/year; coach plans from $19.99/month; connected-athlete access differs CoachNow Shared coaching Spaces/Groups, video analysis, and ongoing communication Analyze $9.99/month or $59/year with five Spaces/Groups and a 250-media allowance; broader plans separate Sources: Onform’s pricing and feature matrix and CoachNow pricing . Check the coach and athlete sides of the plan, storage limits, supported devices, trial terms, and the purchase screen. A recurring price buys a collaboration workflow as well as analysis tools. If a coach already uses one of these platforms, staying in that shared system may be more convenient than sending separate exported files. A one-time local app does not replace that relationship or cloud organization. What an overlay does and does not establish The Draw apps provide visual references in a camera image. Filming perspective, motion blur, visibility, and tracking quality affect the result. A 2D angle is not a calibrated 3D measurement, and an automatic overlay is not a diagnosis of technique, performance, or injury risk. If you need measured ball or bat data, choose and verify the measuring device and its integration. Onform, for example, publishes external radar integrations for certain plans. Do not infer measured speed from the presence of a drawing or tracking tool. Questions to answer before buying Am I reviewing locally or maintaining a shared coaching relationship? Do I need cloud access on several devices, or is one device’s library enough? Can the recipient watch a normal exported video, or do they need an interactive shared workspace? Are the required drawing, comparison, and export tools included in the plan I will actually buy? Is my question visible in ordinary video, or does it require measurement hardware and qualified interpretation? For current product details, use TennisDraw facts , Basketball Draw facts , SwingDraw facts , and BaseballDraw facts . Only released Draw apps are compared here; upcoming apps are listed separately on the portfolio homepage . Explore the apps --- ## TennisDraw: Video Analysis: facts, requirements, and limitations | Apps by David Balderston Canonical source: https://davidb.app/tennisdraw/facts/ Official TennisDraw: Video Analysis purchase facts, device requirements, features, privacy, limitations, and Apple listing source. Official product information TennisDraw: Video Analysis: facts, requirements, and limitations By David Balderston · Updated October 10, 2026 Review your serve and strokes frame by frame, draw on video, and compare practice clips. App Store name TennisDraw: Video Analysis Developer David Balderston U.S. purchase terms $7.99 once in the U.S. App Store. No subscription or in-app purchases. Apple shows local pricing before purchase. Current version 1.0 Platforms iPhone and iPad with iOS/iPadOS 17.6 or later Purchase facts checked 2026-10-10 against Apple’s U.S. listing What it does Record or import video from Photos Slow motion and frame-by-frame review Drawing tools and body overlays as visual references Two-clip comparison Clip organization and notes Annotated media export; original retained What it does not do Automatic fault diagnosis or coaching scores Calibrated 3D movement or injury-risk assessment Ball-speed or shot-result measurements Team cloud libraries, cloud sync, or remote coaching accounts Privacy and storage Video library, notes, and analysis stay on device unless you export or share. No account, advertising, or app analytics SDK. Backups and other apps follow user settings. Official sources and corrections Purchase facts come from Apple’s public U.S. listing Scan with your iPhone . Capabilities and limitations are described by the developer; they are not independently measured benchmarks. Prices and availability can change. Support and corrections · App privacy · Structured product data Explore the apps --- ## Basketball Draw: Shot Analysis: facts, requirements, and limitations | Apps by David Balderston Canonical source: https://davidb.app/basketballdraw/facts/ Official Basketball Draw: Shot Analysis purchase facts, device requirements, features, privacy, limitations, and Apple listing source. Official product information Basketball Draw: Shot Analysis: facts, requirements, and limitations By David Balderston · Updated October 10, 2026 Slow down your shot, draw a clear cue, and compare your next attempt. Private video review for players and coaches. App Store name Basketball Draw: Shot Analysis Developer David Balderston U.S. purchase terms $7.99 once in the U.S. App Store. No subscription or in-app purchases. Apple shows local pricing before purchase. Current version 1.0.0 Platforms iPhone and iPad with iOS/iPadOS 17.6 or later Purchase facts checked 2026-10-10 against Apple’s U.S. listing What it does Record or import video from Photos Slow motion and frame-by-frame review Drawing tools and body overlays as visual references Two-clip comparison Clip organization and notes Annotated media export; original retained What it does not do Automatic fault diagnosis or coaching scores Calibrated 3D movement or injury-risk assessment Ball-speed or shot-result measurements Team cloud libraries, cloud sync, or remote coaching accounts Privacy and storage Video library, notes, and analysis stay on device unless you export or share. No account, advertising, or app analytics SDK. Backups and other apps follow user settings. Official sources and corrections Purchase facts come from Apple’s public U.S. listing Scan with your iPhone . Capabilities and limitations are described by the developer; they are not independently measured benchmarks. Prices and availability can change. Support and corrections · App privacy · Structured product data Explore the apps --- ## How to Set Up Instant Replay on iPhone for Sports Practice Canonical source: https://davidb.app/videodelay/guides/instant-replay-practice/ Use a delayed iPhone camera for hands-free golf, baseball, dance, and gym practice. Set the frame, choose a delay, and review one cue at a time. Practical setup guide How to Set Up Instant Replay on iPhone for Sports Practice By David Balderston, Video Delay’s developer · October 24, 2026 Set up a delayed camera view when you want to finish a rep and watch it without a second person filming or a record button between attempts. Video Delay shows the camera on a delay you choose from 1 to 60 seconds. 1. Check the frame with a test rep Put the phone or iPad on a stable support. Keep the whole movement visible and leave room around the edges. Check one slow test rep before starting a set. Position the screen where you can look at it after the movement without stepping into a road, a swing path, or another person’s space. 2. Pick enough delay to look back Start with a short delay, do one rep, and see whether you have time to finish and turn toward the screen. Increase the delay if the useful part has already played by the time you look. Keep the same camera position while you compare attempts. 3. Give each repetition one question Golf or baseball: keep the athlete and club or bat in frame, then compare one checkpoint. Dance or gymnastics: frame the full movement and leave space for travel. Use a safe, clear practice area. Gym practice: place the device outside the equipment area and review only after the rep is complete. 4. Save a moment when you need a closer review The app can save the last 5, 10, 15, or 30 seconds. Use its slow-motion and drawing tools to study a saved moment. Keep camera angle and checkpoint consistent before interpreting a difference. Live delay or a saved-video analyzer? Choose a delayed camera when you want repeated hands-free feedback during practice. For importing and organizing saved golf or baseball clips, see SwingDraw or BaseballDraw . A camera view does not by itself provide a professional assessment or a physical measurement. See Video Delay’s features, screenshots, and App Store listing · Get setup help . View Video Delay on the App Store Set up a screen or keep a rep For AirPlay, a wired display, and station troubleshooting, use the TV replay setup guide . For save length, slow playback, and optional Photos copies, use the saved-rep guide . --- ## Set up a delayed replay camera on iPhone, iPad or TV | Video Delay Canonical source: https://davidb.app/videodelay/guides/tv-replay-setup/ Build a practice replay station with Video Delay: choose a delay, connect AirPlay or HDMI, test timing and troubleshoot missing TV output. davidb.app / Video Delay / Guide Set up a delayed replay camera on iPhone, iPad or TV By David Balderston, developer of Video Delay · Updated October 24, 2026 Video Delay shows a camera view a few seconds after it happens. Prop up one iPhone or iPad, choose a delay from 1 to 60 seconds, and review a rep after you finish it. The app is a $4.99 one-time U.S. purchase. You can use the device screen on its own or connect a separate display through AirPlay or an HDMI adapter. 1. Set up the camera and screen Place your iPhone or iPad on a stable stand outside the path of people, balls and equipment. Ask permission before filming others. Open Video Delay and allow camera access. Choose front or back camera and frame the full movement. Keep the camera position fixed so you can compare reps. Choose a delay long enough to finish the rep and return your attention to the display. Let the delay fill, then do a test rep. Watch the replay and adjust framing or timing before starting the session. Keep the app open; this is a camera replay station, not background recording. 2. Put the delayed replay on a TV AirPlay Connect the iPhone or iPad and an Apple TV or AirPlay-compatible TV to the same Wi-Fi network. Open Control Center, tap Screen Mirroring , and select the display. Enter its passcode if asked. Return to Video Delay. The app shows the delayed replay full screen on the external display, with controls on the phone. Do another test rep. Wireless output can add latency; set your camera delay after testing the actual display. These connection steps follow Apple’s AirPlay mirroring guide . The app’s camera replay works without internet, but an AirPlay setup still needs a compatible local connection. Shared gym or guest Wi-Fi may prevent devices from discovering one another. HDMI Use a video-output adapter compatible with your device’s USB-C or Lightning port, plus an HDMI cable and display. Select that HDMI input on the TV, then open Video Delay and test the replay. Adapter compatibility varies; check the adapter’s stated support for your device. The app does not turn an unsupported cable into a video adapter. 3. Choose a useful delay Time the movement and the walk back to the screen. Add a small margin so you are looking before the important moment plays. Start with these ranges and adjust after a test; they are setup suggestions, not coaching prescriptions. Golf or a batting tee: try 5–8 seconds for one swing and a turn toward the screen. A lift: try 10–20 seconds, allowing time to put equipment down first. A dance combination or tumbling pass: try 15–30 seconds and leave space to walk back. Video Delay supports 1–60 seconds. It does not provide a 20-minute camera delay. A longer exercise may need to be reviewed in smaller sections. If the TV or replay does not look right The TV is not listed Check AirPlay support, that both devices are on the same Wi-Fi, and any network isolation rules. Use a compatible wired adapter if local wireless discovery is blocked. The TV timing feels late AirPlay, the TV and its picture processing can add latency. Test the whole setup, adjust your chosen delay, or try a wired connection. The image is choppy or the frame rate drops Higher capture frame rates depend on the camera. Heat can lower the frame rate automatically. Reduce the capture setting or let the device cool. I want to keep a rep Delayed viewing does not save every rep. Read how Save rep and slow motion work . Video Delay does not score form or replace a coach. This setup does not require a second synchronized camera. Get the app Video Delay Instant Replay Cam by David Balderston is $4.99 once in the U.S. App Store; local prices vary. No subscription, in-app purchases, account or ads. Requires iOS/iPadOS 17 or later. View Video Delay on the App Store All Video Delay features · Support · Privacy Keep setting up your practice Start with hands-free instant replay for sports practice . Save a rep for slow motion . --- ## Save a rep and review it in slow motion | Video Delay Canonical source: https://davidb.app/videodelay/guides/save-rep-and-slow-motion/ What Video Delay keeps and deletes: use Save rep, pick a 5–30 second clip, review frames, draw angles and optionally save to Photos. davidb.app / Video Delay / Guide Save a rep and review it in slow motion By David Balderston, developer of Video Delay · Updated October 24, 2026 Watching a delayed replay and saving a video are separate actions. Video Delay Instant Replay Cam by David Balderston keeps recent camera video briefly for playback; a rep is kept only when you choose Save rep . It is $4.99 once in the U.S. App Store, with no subscription or in-app purchases. Save the rep you just watched In Settings, choose the saved rep length: 5, 10, 15 or 30 seconds . Set the camera delay and perform a test movement. Choose a saved length that covers the movement you want, rather than assuming it records your whole session. After watching the delayed replay, tap Save rep to keep the recent section of the replay. Open the saved rep from the film button to check that you kept the moment you intended. The camera delay (1–60 seconds) and saved clip length (5–30 seconds) are different settings. A 60-second viewing delay does not mean a 60-second saved clip. Save promptly after watching the rep; continuous replay is not an archive of every earlier attempt. Review slowly and check a frame Open a saved rep, then use playback speeds down to ⅛× , frame-step buttons or the scrubber. Capture at 30, 60, 120 or 240 fps where your camera supports it. Choosing ⅛× playback does not create frames the camera did not capture; higher capture rates can help show fast motion, but availability varies by device, lens and conditions. Tap the pencil to draw a line, angle or circle. Drag the points to adjust it. Lines display an angle, and drawings stay in place for your next session. Keep the device position consistent if you want the overlay to be a useful visual reference. These are manual drawings, not automatic biomechanical measurements or a form score. Keep an optional copy in Photos To put saved reps in Photos too, enable Also save reps to Photos in Settings and allow the requested Photos access. The in-app library and Photos are separate places to check for a saved rep. If your device uses iCloud Photos, Apple’s Photos settings control what happens to the copy you add there. Open the saved clip to check that the movement you wanted is included before finishing the session. What stays and what disappears? Unsaved replay: recent video is overwritten as the delayed view runs. It is not kept as a complete session recording. Saved rep: kept in the app when you choose Save rep. Optional Photos copy: added only when you enable that setting and grant access. App privacy: no account, ads or tracking; Video Delay does not upload your camera video. Review the privacy policy and support instructions for more detail. To build the viewing station first, use the phone, iPad and TV setup guide . Get the app Video Delay Instant Replay Cam by David Balderston is $4.99 once in the U.S. App Store; local prices vary. No subscription, in-app purchases, account or ads. Requires iOS/iPadOS 17 or later. View Video Delay on the App Store All Video Delay features · Support · Privacy Keep setting up your practice Start with hands-free instant replay for sports practice . Set up an iPad or TV replay station .