Motionline

Form Analysis Tool

Free · In‑App Purchases · Designed for iPad. Not verified for macOS.

Motionline breaks down your movement into individual frames so you can analyze and improve your form. HOW IT WORKS 1. Select a video from your library or record a new one 2. AI automatically extracts frames at your chosen interval 3. Browse, compare, and check key frames 4. Export as strobe photos or MP4 videos KEY FEATURES • Frame-by-frame analysis of any video • Person segmentation — isolate the subject from the background • Strobe photo layouts — combine multiple frames into one image • MP4 export from selected frames • Adjustable frame interval, quality, and background color • Mirror mode for easy self-review • Auto-skip similar frames PERFECT FOR • Golf, baseball, tennis, and other sports • Dance and martial arts • Running and swimming form analysis • Coaching and self-improvement SUBSCRIPTION Motionline Premium unlocks all features with a 7-day free trial. Choose Monthly or Yearly (save 50%+). Payment is charged to your Apple ID account at confirmation. Subscription auto-renews unless canceled at least 24 hours before the end of the current period. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://t-aka-h.github.io/motionline/privacy.html

Ratings & Reviews

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Added guide line drawing tools. - Draw lines, rectangles, triangles, and freehand guides on frames - Freely adjust color and thickness - Guide lines are reflected in composite photos - Added rule-of-thirds grid overlay - Added pinch-to-zoom on preview - Added first-time user guide

Version 1.2.0

The developer, Takayuki Hamuro, 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
    • Takayuki Hamuro
    Size
    • 2.2 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 and a Mac with Apple M1 chip or later.
    • Apple Vision
      Requires visionOS 1.0 or later.
    Languages
    • English and Japanese
    Age Rating
    4+
    In-App Purchases
    Yes
    Copyright
    • © Taka 2026
  • Privacy Policy

    • More by Takayuki Hamuro