SimplySitups counts situps.
It’s your job to do the situps; it’s our job to make it simple.
Using the iPhone’s built in gizmos (accelerometer and gyroscope), SimplySitups counts situps after you hit the START button. As you do them, SimplySitups will show the count in large numbers. After you hit the STOP button, SimplySitups displays the count, elapsed time, and average situps per minute.
This version has ads (the paid SimplySitups version is ad-free).
SimplySitupsFree also has the 2 minute timer and email results, just like the paid version. Its the Lite version.