Workout Metronome does the counting for you when doing repetitive exercises, such as sit-ups. Workout Metronome allows you to set the number of sets, repetitions in each set the interval between repetitions the hold time and the rest time after each set and the number of seconds before a set starts to notify you. A different sound will mark every 10th repetition and the completion of a set. Note that while the metronome is ticking the auto-off timer is off.