PeerPressure

The PeerPressure™ app works because it’s based on a simple idea: You’re more likely to stick to a commitment if you know your friends and family are following your progress. Behavioral studies confirm it. Now PeerPressure makes it easy to do. PeerPressure works with email and popular social networks to build a virtual support group that cheers you on when you’re doing well and guides you toward the finish line when you get off track.

iPhone Version:

Price: $1.99
Download This App: PeerPressure – Lucky Knives
Developers Website