Designed for intermittent fasting
Fast.IO is built around the timer itself. You can start a fasting session quickly, keep progress visible throughout the day, and stay oriented without a cluttered dashboard.
⏱ Fasting timer app
Fasting Timer for iPhone
Fast.IO gives you a clean intermittent fasting timer with real-time progress, schedule support, and a history that is easy to review later.
Track more than time
The timer is connected to hydration logging, fasting phases, history, and statistics so you are not stuck with a stopwatch that forgets everything after the session ends.
Built for iPhone habits
Widgets, Live Activities, and Apple Watch support help keep your fasting timer available where you actually look during the day.
Timer screenshots
Active timer
Current fasting progress on iPhone.
Statistics tracker
See how your timer sessions add up over time.
