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Live

Chess Clock for Android

1Chess Clock is an offline chess clock for Android. No account, no internet. Set the time, tap your side and play at the board.

Get it on Google PlayPlay chess online
1Chess Clock running a 5 minute game, one player's clock showing 4:581Chess Clock ready to start with a Fischer increment time control
Status
Live
Platform
Android only
Works
Offline
Account
Not needed

How it works

  1. Choose a time controlPick a preset or set your own time and increment.
  2. Tap to startEach player taps their side to switch the clock.
  3. Play at the boardFocus on the game. The clock handles the rest.

Two clock modes

  • Fischer increment adds a fixed number of seconds after each move.
  • Bronstein delay gives a fixed time before the clock starts counting down. Unused delay is not added.
  • Presets for bullet, blitz, rapid and classical, plus custom times with or without increment.
Fischer increment settings in 1Chess ClockDisplay customization settings in 1Chess Clock

Built for real games

  • Casual over-the-board games: set a time control and start, no login.
  • Chess clubs and practice sessions.
  • Blitz, rapid and longer games with common presets.
  • Coaches and parents running timed practice games.

Large two-player touch areas, presets saved locally and display customization.

Guides

1chess.online has step-by-step guides for setting Fischer and Bronstein controls, 3+2 and 5+0 presets, and using a phone as a chess clock.

Read the guides

Questions and answers

Does the chess clock work offline?
Yes. 1Chess Clock works entirely offline. No internet connection is needed to set up or run a game.
Do I need an account?
No. The app does not require any account, login or registration.
What is Fischer increment?
Fischer increment adds a fixed number of seconds to a player's clock after each move.
What is Bronstein delay?
Bronstein delay gives each player a fixed amount of time before the clock starts counting down on each move. Unused delay time is not added to the clock.
Which time controls are available?
The app has presets for bullet, blitz, rapid and classical, plus custom times with or without increment.
Is it available on iPhone?
No. 1Chess Clock is available on Android only. There is no public iOS release.
How is usage data handled?
The app collects basic anonymous analytics. According to its page, no personal data, game data or account information is collected.
Where do I get it?
On Google Play. Search for 1Chess Clock or use the link on this page.

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