Repeat Timer can act simply as a stopwatch or countdown timer, but it can also handle intervals. You just set the main timer to whatever you want, then the interval timer to a separate length, and ...

Apple Seconds Pro Interval Timer Seconds Pro Interval Timer offers an interval timer for HIIT and Tabata training right from your mobile device.

Countdown Interval Timer is a fitness app available for Windows 10 PC and Mobile that is designed to help you pace your fitness activities. Developed to be useful for high-intensity interval ...

Wandzilak recommends this 15-minute interval walking workout for anyone who wants a spurt of activity, but is short on time. "Remember, ON means the pace is quick, but still comfortable.