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
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.
Scan with your iPhone$4.99 once. No subscription, no account, no ads.Set up a replay for your kind of practice.
Camera placement and timing change with the movement. Choose a practical guide for your next session, with an original setup diagram and a printable checklist.
Dance & choreographyGymnastics & cheerGolf swing practiceLifting & gym practiceBaseball & softballTennis serves & strokesPickleball drillsMartial arts & movementCoaches & PE stations
Browse the practice library · Calculate a starting replay delay · Delay or full recording?
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? Step through the illustrated walkthrough using saved app screens (sample images), 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. See the steps in order in the illustrated walkthrough.
An instant replay camera for your sport.
Any practice where you can’t see yourself while you move. A few setups that work well:
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.
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.