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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

1. Place your iPhone or iPad on a stable stand outside the path of people, balls and equipment. Ask permission before filming others.
2. 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.
3. 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.
4. 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

1. Connect the iPhone or iPad and an Apple TV or AirPlay-compatible TV to the same Wi-Fi network.
2. Open Control Center, tap Screen Mirroring, and select the display. Enter its passcode if asked.
3. Return to Video Delay. The app shows the delayed replay full screen on the external display, with controls on the phone.
4. 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.

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