INTERMITTENT FASTING, MADE FRIENDLY

Fast with a little sunshine.

Fasting Tracker keeps your fast, your streak and your progress in one bright place. No calorie counting and no food logging: start your fast, and Sunny cheers you on until you reach your goal.

For iPhone and Apple WatchComing soon

Coming soon to the App Store, in English and Spanish.

See how it works
Fasting Tracker on iPhone 18 Pro during an 18:6 fast: Sunny in the middle of the ring, 11 hours 30 minutes elapsed, 63 percent of the goal, and the current stage, Fuel Switch
EVERYTHING YOUR FAST NEEDS
  • Live fasting timer
  • 8 body stages
  • Streaks and 25 badges
  • Widgets and Apple Watch

THE APP

Start. Follow.
Keep going.

Fasting is hard. Fasting Tracker keeps it simple, and stays on your side the whole way.

Pick a plan and go.

Start with 13:11, 14:10, 16:8 or 18:6. With Pro, go further: 20:4, one meal a day, 24 or 36 hours, or your own plan from 12 to 72 hours.

See where your fast is.

The ring shows how far you have come and which of 8 stages you may have reached, from blood sugar to ketosis and autophagy, with a timeline that explains each one.

A streak worth keeping.

Every completed fast grows your streak and moves you toward 25 badges. Reminders let you know when your goal is near, at each new stage and before your eating window closes.

YOUR PROGRESS

Every hour
counts.

Look back on every fast with your stats, a 7-day chart and a month calendar. Fasting Tracker Pro adds a 30-day trend.

  • Average, longest and total time fasted
  • Edit a fast, or log one you forgot
  • Your weight from Apple Health, if you choose
Coming soon
Fasting Tracker's History tab on iPhone 18 Pro: 23 fasts completed, a 16 hour 55 minute average, the longest and total time fasted, and a 7-day chart against an 18-hour goal
Your week at a glance, with your goal marked.

ALWAYS WITH YOU

On your wrist.
On your Lock Screen.

Apple Watch and widgets.

Follow your fast on Apple Watch, the Home Screen and the Lock Screen, and start a fast right from a widget.

Live Activity.

Your fast stays on the Lock Screen and in the Dynamic Island, and you can complete it from there.

Just ask Siri.

Start a fast, end it, or ask how long you have been fasting.

Safe in your iCloud.

Your fasts, settings and badges back up to your private iCloud and stay in sync. No account needed.

A note on health

Fasting Tracker is designed for general wellness and is not a medical device. Fasting is not right for everyone. If you are pregnant, diabetic, have a history of eating disorders or take medication, talk to your doctor first, and before any extended fast.

COMING SOON

Your next fast
starts soon.

Fasting Tracker is getting ready for the App Store, for iPhone and Apple Watch.

Say hello

Questions or ideas? Write to support@fastingtracker.app.