Reebok hopes to play that role with a new app called The Promise Keeper available on the iPhone and Android. Reebok's app tells your Facebook friends and Twitter followers when you plan to take a run. If you don’t, then the app will tell them that, too. (One downside of the app is that it's based on an honor system: You're required to tell Promise Keeper when you completed your run by pushing a "finish" button.)
The app promotes Reebok's ZigTech running shoes and is a way to expand into consumers’ lifestyles a la Nike Plus or Adidas miCoach. Nike Plus added a Facebook component in October that lets users solicit their Facebook friends for moral support as they run, but the app lacks the accountability angle of Promise Keeper.
Matt Powell, an analyst at SportsOneSource, says he believes Reebok’s app is the first of its kind, though Nike Plus is pretty comprehensive. “It’s really ubiquitous,” Powell says of Nike Plus. “It’s a huge hit.”
For more on Promise Keeper, see the video below: