Countdown Timer3.2.1

If you have a time limit of one day so that children do not overplay the game, you will need a lot of countdown timers for two or three people, but with this app you can measure at the same time.

It also supports Doze mode installed in Android 6.0 or later, and can measure even in the sleep state.

* Never use this app for dangerous work (using fire, handling dangerous objects, etc.)