You can sound a whip when you make a whipping gesture, play a laugh track when you wobble the phone, sound crickets when moving back and forth, ... As opposed to other apps, you *can train the app with your own set of gestures* (not just the "whip" gesture)!
This way, you can just do your gesture and the right sound will play!
The app comes pre-loaded with a selection of sounds, including whips, explosions, crickets, and clips from movies and TV. You can also choose and even record your own sounds. The only limit is your imagination!
(This may require some practice at first - the quality of gesture recognition relies on the phone and the settings. Refer to the "help" and "settings" section of the app if you're having trouble!)