The U.S. Surgeon General recently challenged mobile device application developers to come up with apps that would “provide tailored health information and empower users to engage in and enjoy healthy behavior.” The first place winner in the Fitness/Physical Activity category was Lose It!, an app designed to help users lose weight. According to the Lose It! website, the average user loses 12.3 pounds with the help of the app, with a 99% success rate (defined as losing any amount of weight) over 4 weeks.