Go outside and take a walk! This is the mobile game where you are playing when you walking. So lets start and try to draw a circle with your path. It is easy with small circles, but can you make the Biggest Circle of the World?
The app can follow your circle in the background, it will stop following after 30 minutes if you left your circle or staying stationary, however continued use of GPS running in the background can dramatically decrease battery life.
Most icons are from the great image set of icons.8.com