How to Use Video Delay with Vertical External Screen

golf swing practice with Video Delay app

Most external screens (TVs, computer monitors, projectors) are designed for horizontal (wide / landscape) viewing. When you connect your iPhone or iPad to an external screen using an HDMI cable or AirPlay:

  • The video usually appears in horizontal orientation by default.
  • If you physically stand the external screen vertically (tall / upright), the picture often ends up sideways, cropped, or with black bars, so it doesn’t fill the screen properly.

Video Delay Instant Replay has a simple fix: a yellow rotation button that appears on your iPhone or iPad as soon as an external screen is connected. It rotates only the video sent to the external screen, so the picture fills a vertically mounted TV or monitor correctly. There is nothing to switch on in Settings.

This is especially useful for golf coaches, sports facilities, gyms, driving ranges, or any setup where mounting a monitor or TV vertically saves space or provides players/coaches with a better viewing angle.

Video Delay Instant Replay screenshots showing swing practice in app in vertical / portrait mode shared to the external screen
Swing practice with Video Delay app can be easily share to an external screen.

Step-by-step setup for vertical mode on external screen:

  1. Stand your external screen (TV or monitor) upright.
  2. Open Video Delay Instant Replay.
  3. Connect your iPhone or iPad to the external screen:
    • Via HDMI cable (using the right adapter), or
    • Via AirPlay (to Apple TV or compatible smart TV).
  4. A yellow button labeled “0°” appears among the controls on your iPhone or iPad.
  5. Tap the yellow button until the picture is upright:
    • Each tap rotates the external screen video by 90 degrees (0° → 90° → 180° → 270° → 0°).
    • The label shows the current rotation, so you always know where you are.
    • Stop when the image is upright and fills the whole external screen, with no black bars or cropping.

Done! Your video now matches the vertically mounted external screen.

Quick tips for flawless Video Delay setup:

  • The rotation only affects what’s shown on the external screen. Your iPhone or iPad screen stays normal.
  • The app remembers your rotation, so the next time you connect the same vertical screen it is already set.
  • Don’t see the yellow button? It only shows while an external screen is connected. Check the cable or AirPlay connection, and make sure you have the latest version of the app.
  • Great for golf swing analysis, batting practice, gym workouts, or any sport where a tall display helps show whole-body motion without wasting space.

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