Round Timer

This app times boxing or other interval-based workouts. It starts with an optional preparation time (to give you a chance to get ready for your workout), and then transitions back and forth between active and rest periods, notifying you with a loud tone and changing colors when each round begins and ends and counting rounds as you go. Features include:

- No ads.

- Simple preparation, round, and rest time setting.

- Customizable presets to remember your favorite workouts.

- Temporarily softens or mutes background music volume when playing alert tones.

- Large, easily visible display in timer mode.

- Keeps the screen on for easy visibility, or lets you turn it off to conserve battery.