Simple Timer is a free Android application developed by SIMPLIT that provides multiple timer and stopwatch functions. It gives users the ability to save and run multiple timers/stopwatches, customize stickers, set titles and descriptions, and apply sticker filters.

One of the most useful features of Simple Timer is the ability to stop all completed timers at once. This feature saves users time and effort, especially when running multiple timers at the same time. The app also displays a list of currently running timers and stopwatches, which is helpful in keeping track of time.

Overall, Simple Timer is a great time management tool that offers a variety of features to help users manage their time effectively. Its user-friendly interface and customizable options make it a must-have app for anyone looking for a reliable and efficient timer/stopwatch application.