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OnTime - Presentation Timer

Presentation timer for speakers at live events
New in version 3.4
What's new:
• Hide seconds: a new switch in the timer editor shows whole minutes while the timer runs. Pause to see the seconds.
• Renaming a running timer no longer warns that it will be reset.
OnTime keeps speakers on schedule at live events, presentations and lectures.

Set a total time and two warning points, then start it. The whole screen is the signal: green while you have room, yellow when you should start wrapping up, red when you are nearly out. When the time runs out the clock keeps counting upwards, so you always know exactly how far over you ran.

Features:
- Total time with yellow and red warnings, each set as the time remaining.
- The background changes sharply between green, yellow and red — readable across a room.
- The overtime clock keeps running past zero.
- Save as many timers as you need, name them, and switch between them from the Timers list.
- The screen stays on while a timer is on screen.
- Rotating the device never disturbs a running timer.
- Everything fits on one screen. Nothing to scroll, nothing to hunt for.
- No permissions, no network access, no tracking.

Durations can be typed the way you think of them: 25:00, 90, 25m or 1h 30m.

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.

Download F-Droid
  • Version 3.4 (14) suggested Added on Oct 27, 2026

    arm64-v8a armeabi-v7a x86 x86_64

    This version requires Android 7.0 or newer.

    It is built and signed by the original developer, and guaranteed to correspond to this source tarball.

    Permissions
    • si.jakobkreft.ontime.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

    Download APK 1.3 MiB PGP Signature | Build Log

  • New in version 3.3
    What's new:
    • The Google Play version now has a "Rate on Google Play" button on the About page, in place of the Ko-fi link.
    • Nothing changes in the F-Droid and GitHub version.
  • Version 3.3 (13) - Added on Oct 14, 2026

    arm64-v8a armeabi-v7a x86 x86_64

    This version requires Android 7.0 or newer.

    It is built and signed by the original developer, and guaranteed to correspond to this source tarball.

    Permissions
    • si.jakobkreft.ontime.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

    Download APK 1.3 MiB PGP Signature | Build Log

  • New in version 3.2
    What's new:
    • A simpler About page, a short description and the links, without repeating a feature list you can already see in the app.
    • The links there now carry the green, amber and red of the app icon.
    • The support link points to Ko-fi.
  • Version 3.2 (12) - Added on Sep 11, 2026

    arm64-v8a armeabi-v7a x86 x86_64

    This version requires Android 7.0 or newer.

    It is built and signed by the original developer, and guaranteed to correspond to this source tarball.

    Permissions
    • si.jakobkreft.ontime.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

    Download APK 1.3 MiB PGP Signature | Build Log