Interval Boss

Runner inspired and runner tested by a marathoner in run/walk training. This is the interval app designed NOT to be open during your run. Listen to your music app, run your GPS app, but put Interval Boss in the background and listen to the Boss.

Setup intervals, sounds, and start the workout. Then put the Interval Boss in the background and let it tell you when to run, walk, or sprint while you listen to your favorite music or podcast app.