MyFitnessPal is another popular app that helps you track your food intake, exercise and call on your friends to help keep you motivates. This app, owned by Under Armour is the central part of how I lost 25 pounds last year.
MyFitnessPal includes access to a million foods and items in a searchable database that lets you easily add your food log to your iPhone or Android. There are also apps for BlackBerry and Windows Phone.
This app and service is free, with apps that make logging easily and a personalized diet profile that helps you set a healthy diet goal and a healthy exercise goal.
There are options to friend other users and connect with your contacts and Facebook friends for support and motivation.
MyFitnessPal also connects to a variety of apps and accessories like FitBit, Withings, Runtastic, Endomondo, Jawbone UP, Pact and others that help you track your progress with specialized apps and accessories. There is also an Apple Watch app.