DiveTwin

Overlay & compare two clips

Free · In‑App Purchases

DiveTwin overlays two videos of the same movement so you can see exactly how two attempts differ. It began as a tool for comparing dives, but it works for anything you can film twice from the same spot: gymnastics and trampoline, synchronized swimming, skating, martial arts, a golf or tennis swing, dance, weightlifting - any repeatable motion. Load a reference clip and a second clip, mark the same instant in each (for example the take-off, or the moment of contact), and DiveTwin locks the two together on one timeline. Play them back in sync, step frame by frame, slow it right down, and watch both attempts move as one. Choose the comparison that suits the moment: - Normal - the classic ghost overlay - Lighten - keeps the brighter subject, no wash-out - Difference - lights up exactly where the two attempts diverge Fine-tune with a blend slider, nudge one video to line up small camera differences, set a start and end around just the part you care about, and export the overlay as a silent clip to share with your athlete. Everything runs on your device. DiveTwin does not collect any data, shows no ads, and needs no account or internet connection. One purchase covers your iPhone, iPad and Mac. Film from a fixed position so the only thing that changes between attempts is the performer.

A Closer Look

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iPhone landscape controls now stay legible over bright or blue water - choose Dim, Dark, or Amber control styles. Plus updated screenshots and a preview.

Version 1.0.1

The developer, Sai Kee Wong, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Not Collected

    The developer does not collect any data from this app.

    Privacy practices may vary, for example, based on the features you use or your age. Learn More

    Accessibility

    The developer has not yet indicated which accessibility features this app supports. Learn More

    Information

    Seller
    Sai Kee Wong
    Size
    1.1 MB
    Category
    Sports
    Compatibility
    Requires iOS 16.0 or later.
    • iPhone
      Requires iOS 16.0 or later.
    • iPad
      Requires iPadOS 16.0 or later.
    • Mac
      Requires macOS 13.0 or later.
    • Apple Vision
      Requires visionOS 1.0 or later.
    Languages
    English
    Age Rating
    4+
    In-App Purchases
    Yes
    Copyright
    © 2026 Sai Kee Wong
  • Developer Website
  • Privacy Policy

    • More by Sai Kee Wong

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