iPhones are not just for listening to workout mixes. You can enhance almost any exercise experience with a few apps for tracking your progress or teaching you new moves. Apps that use social networks are another way to up your game, since announcing to your friends how you've worked out for the day holds you accountable, keeps you motivated, and inspires your social circle. Here are eight iPhone apps that use your social network for just that!
Social Fitness Apps Enlist Your Online Friends to Keep You Motivated