The difficult challenge of diet and exercise may have new motivation behind it, thanks to an app called Diet Bet.

Diet Bet allows users to either play an existing weight loss game or create their own. While they can play with their friends, most of the time users don’t know who they’re betting up against.

The concept is simple: the more people join, the more money there is to win. The hard part? Lose 4 percent of your body weight in four weeks. Whoever wins gets to split the money. There are also other games weight loss gurus can participate in, including a long-term challenge where gamers have six months to lose 10 percent of their starting weight.

To make sure the 'losers' aren't really cheaters, contesters have to take two photos. On a certain date, users have someone take a full length photo of them on the scale, showing their weight. They're then asked to hold a piece of paper with a weigh-in word to prove it's really them.

The company boasts a success rate of 96 percent, paying out their winners a total of $8 million, where contestants lose an average of 9 pounds per month.

(ksl.com)