Put your money where your mouth is and shed some lbs. Gym Pact lets you make a pact with the app’s community of users. If you live up to it, you can earn money. If you don’t, you owe money. “I use this to keep me motivated,” says reviewer Prtybttrfly. “I’d rather work out for 30 minutes than pay $5.”
It’s not all that easy to cheat either. The app uses GPS software to know if you’re check-in at the gym is legit, or if you’re just surfing from your couch. If you don’t use a gym, don’t worry. You can track your activity through RunKeeper, another app on this list. A new feature: the app syncs with the Jawbone UP wristband, and you get a bonus workout if you complete your 10,000 steps per day by the end of the day.
Android – Free
iPhone – Free