I love this app. It is a simple interface that is easy to use. The best part is that it uploads all workouts to their website. From there you can view all your stats such as miles run, miles biked, distant walked, etc. It will estimate amount of calories burned and a whole lot more. It has graphs that are user controlled. Just select the month or week and see how many miles you put in. Your workouts can be private or public if you wish to challenge others. You can even add (or import) your workouts if you didn't have your phone on you (such as while you're swimming). I like Endomondo better than MyTracks...you might also.