Workout Punch
Workout Punch is an acoustic augmented reality app where real-time sound effects are played as you punch (i.e. it detects a punching motion and plays sound effects in sync with your punching). It also measures your punching rate and calories burned for a full workout.
To use the app:
1. You put your iPhone/iPod in your pocket
2. Press the Start button on the app
3. Punch!
When complete, press the Stop button and all of your stats will be shown.