Cronometer is described as 'An online diary for tracking your diet, exercise, and other health related information. The mobile app is a companion to the website for easy logging on the go' and is a Calorie Tracker in the sport & health category. There are more than 50 alternatives to Cronometer for a variety of platforms, including iPhone, Android, iPad, Web-based and Android Tablet apps. The best Cronometer alternative is OpenNutriTracker, which is both free and Open Source. Other great apps like Cronometer are FoodYou, MyFitnessPal, Alma Nutrition and Nutrivio.