This stopwatch will help you, with a sound, to remind you to start a new set of your exercise. With this application you will never have a rest time, during your exercises, longer than what you should do. You just need to adjust the timer with the time you take to do an exercises plus the rest time between them.
Moreover, you can save your exercises in a timetable and the application will display each day the list of exercises. After each set, the next exercises will be display.