Fastyle is described as 'The Top Intermittent Fasting Tracker app is the easiest fasting tracking app for your body health and weight loss, with no diet. astyle has multiple fasting protocols that are suitable for both beginners and the experienced, men and women' and is an app in the sport & health category. There are more than 10 alternatives to Fastyle for a variety of platforms, including iPhone, iPad, Android, Android Tablet and Apple Watch apps. The best Fastyle alternative is Zero, which is free. Other great apps like Fastyle are JustFast, Easy Fast, FastMinder and Simple: Fasting and Meal Tracker.