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OnTime - Presentation Timer

Presentation timer for speakers at live events
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.
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 3.2 (12) suggested 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

  • New in version 3.1
    New feature:
    • Full-screen clock. Turn the phone sideways and tap the clock, or the expand icon, for a view with nothing on it but the time. Tap anywhere to come back.
  • Version 3.1 (11) - Added on Sep 07, 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 3.0
    Version 3.0 — rebuilt from the ground up.

    • Saved timers now live in a named "Timers" list instead of hidden swipe gestures.
    • Everything fits the screen at once, in either orientation. No scrolling.
    • Rotating the device no longer disturbs a running timer: colour, countdown and overtime all carry through.
    • Durations accept 25:00, 90, 25m or 1h 30m, and the editor shows what it understood.
    • Timers saved in 2.6 carry over.
  • Version 3.0 (10) - Added on Sep 02, 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