Fitbod - Personalized Strength-Training powered by Machine Learning
iRewardHealth - Motivating healthy behavior change
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.
Tep - Fitness tracker meets tamagotchi. Don't starve it!
Fitocracy - Fitocracy is a social network that turns exercise into a cooperative and competitive exercise with friends, rivals, and strangers.
Physio Health - Stay healthy, get rewards.