The purpose of this project was to design a mobile app relating to a specific topic, for a specific demographic for a specific device. The topic was health, the demographic was teens and the device was the Windows phone. Our solution was Sprout, a mobile app for teen girls going through puberty. Sprout helps its user keep track of their cycle as well as gives them information on the transitions their body is going through. Unlike other apps, Sprout grows with its user and changes its content according to the stages in life its user is at. Once the user becomes sexually active, Sprout changes its focus from tracking menstrual cycles to sexual education. This project was a collaboration with Rachel Chan.