Spond - The easiest way to organize team sports or other type of group activities
Strava - The #1 app for runners and cyclists
TeamSnap - Sports Team, Club & League Management Software & Apps
MyFitnessPal - Track the number of calories that you consume each day with MyFitnessPal. The app also lets you create a diet and track the exercise that you complete each day whether it's walking, running or some other type of program.
Fullcourt - The social network for basketball players
Runtastic - Runtastic offers a series of fitness apps that can be used to track your running, walking, hiking, and cycling, as well as many other fitness routines. Read more about Runtastic.