HIIT interval training timer

HIIT means High-intensity interval training. also called sprint interval training (SIT) or high-intensity intermittent exercise (HIIE)This is an enhanced form of interval training, an strategy alternating periods of short intense cardiovascular exercise with less-intense recovery periods.This app is stopwatch for interval training.It is easy to use weightlifting, crossfit training, tabata, round timer, running, sports .. etcThis app has a simple interface.And this app runs in background on your phone. So you can listen music with this timer app.Apache 2.0 Licensehttp://www.apache.org/licenses/LICENSE-2.0.html