Runkeeper is a GPS fitness-tracking app for iOS and Android with over 40 million users.

Sports Tracker is a sport and fitness application for running, cycling and every-day training.

Nike+ Running app helps you track runs, challenge friends and get motivated to keep going.

Endomondo is a social fitness network created by Endomondo LLC which allows users to track their fitness and health statistics with a mobile application and w…

Strava is a website and mobile app used to track athletic activity via GPS.