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OpenJump

Analyze jumps and exercise velocity from video, offline
New in version 1.2.2
OpenJump 1.2.2: video jump analysis with six protocols, athlete profiles, history, comparisons and manual backups. Camera, frame selector and Encoder improvements. The F-V-P profile is not available in this release. Offline processing on your device.
OpenJump measures athletic jumps from recorded or imported video. Select takeoff and landing frame by frame; calculations use the video's real presentation timestamps rather than its nominal frame rate.

• Six protocols: countermovement jump (CMJ), squat jump (SJ), Abalakov, unilateral jump, drop jump and standing horizontal jump.
• Jump height, flight time, takeoff velocity and protocol-specific metrics; calibrated horizontal distance.
• Athlete profiles, teams, local history, progress and comparisons.
• Experimental video Encoder: scale calibration, visual tracking, repetition analysis, velocity and trajectory charts, and trajectory-video export.
• Manual backups and user-initiated JSON/CSV exports.
• Configurable units, light/dark appearance and eight interface languages.

Analysis and saved measurements stay on your device. No accounts, ads, automatic analytics or Internet permission. Sharing, exports, backups and support email require your action; destination applications may transfer those copies. Manual backup JSON is not encrypted.

Results depend on video quality, viewpoint, calibration and event selection. Encoder is experimental and has not been validated against a physical encoder. OpenJump is not a medical or clinically validated device. Save an analysis before leaving it: unsaved work does not survive process death.
  • app screenshot
  • app screenshot

Versions

Although APK downloads are available below to give you the choice, you should be aware that by installing that way you will not receive update notifications and it's a less secure way to download. We recommend that you install the F-Droid client and use that.

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  • Version 1.2.2 (10) suggested Added on Oct 27, 2026

    arm64-v8a armeabi-v7a x86 x86_64

    This version requires Android 8.0 or newer.

    It is built and signed by F-Droid, and guaranteed to correspond to this source tarball.

    Permissions
    • view network connections
      Allows the app to view information about network connections such as which networks exist and are connected.
    • take pictures and videos
      This app can take pictures and record videos using the camera while the app is in use.
    • read the contents of your shared storage
      Allows the app to read the contents of your shared storage.
    • prevent phone from sleeping
      Allows the app to prevent the phone from going to sleep.
    • modify or delete the contents of your shared storage
      Allows the app to write the contents of your shared storage.
    • com.openjump.app.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

    Download APK 13 MiB PGP Signature | Build Log

    • New in version 1.0
    First public release of OpenJump. Analyze jumps from video, measure six jump protocols and track athletes’ progress with profiles, history and comparisons. Offline processing on your device.
  • Version 1.0 (7) - Added on Oct 22, 2026

    arm64-v8a armeabi-v7a x86 x86_64

    This version requires Android 8.0 or newer.

    It is built and signed by F-Droid, and guaranteed to correspond to this source tarball.

    Permissions
    • view network connections
      Allows the app to view information about network connections such as which networks exist and are connected.
    • take pictures and videos
      This app can take pictures and record videos using the camera while the app is in use.
    • read the contents of your shared storage
      Allows the app to read the contents of your shared storage.
    • prevent phone from sleeping
      Allows the app to prevent the phone from going to sleep.
    • modify or delete the contents of your shared storage
      Allows the app to write the contents of your shared storage.
    • com.openjump.app.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

    Download APK 12 MiB PGP Signature | Build Log

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