FitX is an app that help user to know about there diet plan and provides an idea of approx daily intake in the form of calorific values. If you want to gain/lose weight than by calculating your calories, it will tell you that how much calories you should take more and what you should eat and if you want to loss your weight than also it will provide you with a valid diet plan. It also have a step counter which tells user that how much steps you should walk to remain fit and healthy. Moreover, it have fitness related exercises and by using this app you can observe your friends to see there fitness record and can take this exercises as a challenge.