Mightybell - Build a community and a business on mobile
Fitso - Your personal coach for fitness, running & weight loss/gain
MyTalk - Build a community around your product
Salut - Find and support free virtual fitness classes and trainers
Hey.Cafe - Hey.Café is a social network built around communities called cafés.
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.