Android/iOS: Fitness trackers are a great way to gamify your fitness goals and compete with others.

The app uses your phone’s GPS to track your exercise.

Each time you open it up, you pick a charity.

You’ll then earn 10 cents a mile for biking and 25 cents a mile for walking and running.

Charity Miles| Charity Miles viaCnet

Charity Miles| iTunes App Store

Charity Miles| Google Play