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Backgammon Clock

A flexible two-player backgammon match clock and scorekeeper.
New in version 1.7
Change the score icon to a tally.
A backgammon clock and scorekeeper for two players sharing one phone between them.

The app asks for no permissions at all. There is no network access, no analytics, no accounts, no ads, and nothing to configure before you can use it. The whole clock is a single HTML file inside the app.

Features

- Large area with the remaining total time/delay time for this move. Tap on your half to end your turn and start your opponent's clock.
- Set the number of points to play for (1, 3, 5, 7, …, 29).
- Set the reserve time per point (e.g. 2 minutes or 3 minutes), in 15-second increments.
- Set the delay (free seconds every turn which don't carry over to the next turn), in 1 second increments.
- Choose 1 of 5 colour schemes.
- Turn sounds (for the turn change, when the delay runs out, and when the time runs out) on or off.
- Pause/play the clocks.
- Number of moves for this game and current score (when playing a multi-point match) are always shown.
- Once a game is done, click the score icon in the middle to set the score. The clocks stay at their current time.
- Adjust the clocks from the score sheet, if necessary.
- Press the reset button twice (within 2 seconds, so you can't press it accidentally) to reset the clock and scores and start a new match.
- Keeps running in the background, returns to the last known clock timings and scores after a crash or forced quit.
- The screen stays awake while you play.

Functional design is by Hans de Zwart, partially inspired by the open sourced Chess.com clock. Code is by Claude Opus.

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 1.7 (8) suggested Added on Aug 19, 2026

    This version requires Android 8.0 or newer.

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

    No permissions

    Download APK 1.0 MiB PGP Signature | Build Log

  • New in version 1.4
    Fixes a match not coming back correctly after the app is force-quit. The clock
    returned to where it stood at the last turn change, losing the time spent on
    the turn that was interrupted. The match is now written down once a second
    while a clock is running, so at most a second can be lost.
  • Version 1.4 (5) - Added on Aug 17, 2026

    This version requires Android 8.0 or newer.

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

    No permissions

    Download APK 1.0 MiB PGP Signature | Build Log

  • New in version 1.1
    The navigation bar at the bottom of the screen now stays visible while you
    play, so switching to another app is easy. Only the status bar is hidden.

    The description in F-Droid has been rewritten to spell out what the clock can
    actually do.
  • Version 1.1 (2) - Added on Aug 14, 2026

    This version requires Android 8.0 or newer.

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

    No permissions

    Download APK 1.0 MiB PGP Signature | Build Log