Good for a sustainable routine
16:8 fasting is a common starting point because it fits around a normal day. Fast.IO helps you repeat that routine consistently rather than improvising each day.
Fast.IO makes 16:8 fasting simple with a timer, hydration tracking, statistics, and session history built for daily use.
16:8 fasting is a common starting point because it fits around a normal day. Fast.IO helps you repeat that routine consistently rather than improvising each day.
The timer view gives you a straightforward sense of where you are in the session so 16:8 fasting feels measurable, not vague.
With history, fasting statistics, hydration logs, and Apple Health support, you can see whether your 16:8 fasting plan is becoming a real habit.
The main 16:8 fasting session view.

Review your recent 16:8 fasting sessions.
