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.
Physio Health - Stay healthy, get rewards.
Lose it! - Snap a photo of your food to get nutritional facts
Tep - Fitness tracker meets tamagotchi. Don't starve it!
Noom - Get life-long weight-loss results