This is the full PRO version, with no IAPs and a stack of 5-star reviews. It's free for a limited time - that's a saving of $2.49
Flatten your stomach and get those abdominal muscles to start showing with Runtastic Sit-Ups PRO. This app is your personal sit-up trainer that uses an easy to follow scientific sports training plan that helps you build strength and see constant improvement. Sit-ups are counted automatically using the accelerometer on your iPhone or iPad.
