Interval Training Timer perfect for HIIT Circuit and Tabata Workouts Timer Plus is an easy to use special app for high intensity interval Training. -Ability to display the number and duration of rounds and cycles. -Interval Stopwatch -Timer works in background mode -Informative screen flash -Create an infinite number of timers, save them in the history of workouts. -Voice guidance Use our Timer Plus app while training at home, at the gym, boxing, MMA, Bodyweight exercises or other fitness activities.