Intermittent Fasting: IF24 is described as 'Free iOS fasting timer. Start a fast in one tap - no account required - and a clear ring tracks your fasting window hour by hour. IF24 highlights the estimated metabolic phases you pass through based on typical fasting timing (fed, fat burning' and is an app in the sport & health category. There are three alternatives to Intermittent Fasting: IF24 for a variety of platforms, including Android, iPhone, Android Tablet, iPad and Apple Watch apps. The best Intermittent Fasting: IF24 alternative is Zero, which is free. Other great apps like Intermittent Fasting: IF24 are BodyFast Intermittent Fasting and Fastic: Intermittent Fasting.