Interval Timer is a free Android app developed by Martin Machata that offers a simple and efficient way to time your workouts, sports activities, or any other kind of interval training. With its user-friendly interface and customizable features, Interval Timer is suitable for both beginners and experienced athletes.

The app allows you to choose from three preset timer modes: classic timer, TABATA, and custom timer. In the custom timer mode, you can set up your own intervals, prepare time, work and rest time, and cycles. You can also choose different sounds and colors for each part of the timer and adjust the volume to your liking. Moreover, you can name each part of the timer, which is especially useful when creating your own custom workout routines.

The app's interface is straightforward and easy to navigate, making it simple to set up your timer and start your training session. Whether you are a fitness enthusiast, a professional athlete, or just someone who wants to keep track of their time during workouts, Interval Timer is an excellent choice.