Fitness & Diet Apps My Fitness Pal Free calorie counter and diet tracker where you can log your activity and foods daily. Also available for iPhone and iPad. Lose It! Weight Loss Program and Calorie Counter: Free app for iPhone and iPad where you can log your daily activity and food intake – it even has a bar code scanner when you are not able to look up nutritional information. Runtastic GPS Free app for iPhone, Android and Windows phone which tracks your activity using GPS technology to help you achieve your health and fitness goals. Nike+ Running Free app for iPhone which tracks your runs and progress while keeping you motivated to reach your goals.