Guided Fasting
Simple fasting timer
Free · Designed for iPhone. Not verified for macOS.
Start your fast with one tap. Track your streak, your metabolic phases, and your weekly progress. Now on Apple Watch too.
Guided Fasting is the simplest way to track your intermittent fast, day by day.
START WITH ONE TAP
Choose your plan — 16:8, 18:6, 20:4, OMAD, or a custom window — and tap "Start fast". A progress ring shows how long you've gone and how much is left, in real time.
YOUR METABOLIC PHASES
Track which phase your body is in while you fast: glucose, glycogen, ketosis, and autophagy, with an explanation of what's happening in each one.
STREAK AND HISTORY
Every completed fast adds to your streak. History keeps every log with a weekly recap — average, record, and a chart across the last 7 days, 30 days, or your entire history.
ALSO ON APPLE WATCH
Start or break your fast from your wrist, synced instantly with your iPhone.
REMINDERS
Get notified when your fast ends and when it's time to start the next one, so you never miss it.
EXTRA FEATURES
Use advanced plans (20:4, OMAD, and custom) whenever you like, add a home screen widget with your live progress, save your streak if you break a fast early, and read the detail behind each metabolic phase — by watching a short ad, always optional and never required to use the app.
YOUR DATA STAYS ON YOUR DEVICE
Your entire history is stored locally on your iPhone. No account required.
AVAILABLE IN ENGLISH AND SPANISH
The app automatically detects your device's language, and you can change it manually anytime from Settings.
No scales, no diets to follow, no clutter. Just you and your eating window.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Privacy improvements: the personalized-ads consent prompt now displays correctly in every case, in line with EU data protection rules. A few additional small fixes.
Thanks for using Guided Fasting!
The developer, DAVID VILCHEZ SANCHEZ, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Identifiers
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Identifiers
- Usage Data
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- DAVID VILCHEZ SANCHEZ
- Size
- 21.1 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later. - Apple Watch
Requires watchOS 9.0 or later.
- iPhone
- Languages
- English and Spanish
- Age Rating
4+
- 4+
- Contains
Advertising
- Copyright
- © 2026 David Vílchez Sánchez