Best of breed
Ive tried a lot of Tabata and interval apps. Most of them lack something important making them nearly unusable. Some lock while youre in the middle of a workout, some dont have sounds indicating when your interval is over, some dont allow you to truly customize your intervals. So far this app has none of those fatal flaws. I can think up some nice to haves but this totally useable as is. Bravo.
SamerIWarrior about
Intervals Pro - HIIT Timer