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 .. etc
This 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 License