Are you tired of always checking the clock or that youtube video to know how much time left of your set? Annoying, huh? Use Sety instead! It was made to help you to ease your workout. You no longer need to check the time. Sety will notify you with a sound when your set is over and is going to continue the count for another set. It's perfect for home, for the gym, or even for the street. Premium version will remove the advertisements only for $0.99.