Get Paid to Work Out?!?!?!?!

I saw this app on my facebook feed last night. I downloaded it, but didn't completely sign up for it yet (because I know I won't be working out for a week or so due to a health problem), but it does look interesting.

The app is called Gym Pact, and their website is here: http://www.gym-pact.com/

The basics:
You tell the app how many days you are going to work out that week, and how much you will pay if you do not work out (minimum amount is $5 per workout).

Then you "check in" when your at the gym, or enter your workout (i.e. a walk) into the app. If you miss a day, then you have to pay $5 for the day you missed. However, if you DO complete all of your days of working out, then you get paid for completing your week (the money comes from the people that missed a workout).

Here's a short video about it:

Jamie R.