Gixo - Live fitness classes wherever you are.
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.
FLEX - An in-app debugging and exploration tool for iOS.
Fitbod - Personalized Strength-Training powered by Machine Learning
MuscleWiki - Understand your body, simplify your workouts
Fitocracy - Fitocracy is a social network that turns exercise into a cooperative and competitive exercise with friends, rivals, and strangers.