Carbon Quotient App

Here is a shot from the Carbon Quotient app - a personal Carbon tracker application for iPhone. It will set your profile first time with asking some simple questions about your daily activity. Then it will display the tracker in the app's home-screen and set goals for you. You can share and play with your friends to achieve levels and get trophies.

See the app prototype in action: http://invis.io/ZP1KWE8JG