Financial Times: Fit Hacks: join our first running challenges

“StepBet is an app that forces users to put their money where their feet are. Participants pledge to take a certain number of steps over the course of a few weeks and back it up with $40. Their money is pooled with that of others and if they fail, the $40 is lost. All users who complete the challenge split the pool evenly after StepBet takes a cut.” Read more at Financial Times