The easiest game!Keep track of your activity, be more active than your friends!
Keep track of your activity and try to walk or run more than your friends. Sign in to Google Play Games and see who is the most active - you or your friends on Google+. Unlock achievements and be the first on high score tables.
This is the simplest game ever made - just start Activity, enable activity updates recording and keep your phone with you. It will magically detect you current activity and record its duration. If you are still longer than 1 hour it will remind you to take a break and walk.
This is more than activity tracker - it helps to keep you fit.
Application should be compatible with any phone or tablet with Google Play installed but may not detect activity updates correctly, it depends on actual device hardware!