Some details
Shredder allows users to customize and plan their High Intensity Interval Training sessions based on the duration of each interval. Whether you are doing Tabata Thrusters or Circuit training, whether your focus is on Muscle gain or six pack abs, whether you are at a outdoor Gym or instead working out at a Home Gym - Shredder has you covered.
iOS App:
https://itunes.apple.com/us/app/shredder/id1351284968?ls=1&,mt=8Android App:
https://play.google.com/store/apps/details?id=com.app.shredder