Support
Answers to the most common questions about Chess Clock. Can't find yours? Write to support@getchessclock.com and we'll get back to you.
Quick start
- Open the app and tap the time control in the centre to pick a preset, for example Blitz 5+0.
- Lay the phone flat between both players.
- White taps their own half to start Black's clock — from then on, tap your half after each of your moves.
- Use the centre bar to pause, reset or open the settings at any time.
During the game
- The screen stays awake while the clock is running, so you don't need to change your auto-lock setting.
- Turn on the Live Activity in the settings to see both clocks on the Lock Screen and in the Dynamic Island. It ends automatically when the game finishes.
- Enable the airplane mode reminder in the settings and the clock shows an icon reminding you to switch airplane mode on — calls and notifications can then no longer interrupt a time-critical game.
- An interrupted game is restored: if the app is closed mid-game, it picks the position back up when you reopen it.
Pro, purchases and restoring
Pro is a one-time purchase — there is no subscription and nothing renews. It unlocks the tournament presets (FIDE, USCF, multi-phase), all increment modes, Byo-Yomi, the extra themes and more. An optional tip also unlocks Pro.
If you reinstall the app or switch devices, open Settings → Restore purchases, signed in with the same Apple Account you used for the purchase. Restoring is free and needs an internet connection.
Refunds are handled by Apple, not by us — use Report a Problem in your App Store purchase history.
Tournament use
- Check your event's rules first: many federations require an approved hardware clock for rated over-the-board games and restrict phones in the playing area.
- Set the time control before the round starts and confirm it with your opponent — multi-phase controls switch phases automatically once the required number of moves is reached.
- The arbiter's decision always takes precedence over what the app shows.