Weight Watchers - Weight Watchers is the best weight monitoring application that is designed to assist the users to not only lose their weight but also score benefits that go beyond seeing a smaller number on the scale.

CalorieTracker.io - An intelligent calorie and weight tracking assistant that learns with you.

Fitocracy - Fitocracy is a social network that turns exercise into a cooperative and competitive exercise with friends, rivals, and strangers.

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.

Lose it! - Snap a photo of your food to get nutritional facts

Nutritionix Track - The largest verified database of nutrition information.