A free app for Android, by Johnny Keolot.

Countdown is the most popular timer app that has an easy-to-use interface. You can set it to count down to any event and get a notification when the countdown is finished. The application also allows you to make a screenshot of the current state of the countdown.

The application has several modes of timers, and you can set each of them to count down to an event.

There are several ways to customize the interface and appearance of the application. You can change the color of the counter and background and set a timer for any event. You can also make the font of the counter and date bigger.