A free program for Android, by Wang Shudao.

Get your device a simple but calming clock that will help you improve your focus on your tasks. And Zen Flip Clock would be a great option for this!

Zen Flip Clock is more than just a typical timekeeper. This app boasts straightforward but relaxing designs that aim to help your concentration so that you can be more productive with your work. It offers a collection of classic yet elegant layouts you can choose from.

The app has built-in features that lets you personalize it. You may choose between the 24- and 12-hour format. You can use the pomodoro technique to set your schedules and workloads. It also has a stopwatch functionality if you require a timer for a certain task.

You may download this practical tool from Google Play Store.