Fasting Window - IF Timer
Fasting timer and history
Free · Designed for iPad. Not verified for macOS.
Record your fasting time with a simple timer.
TRACK YOUR TIME
• Select 16:8, 18:6, 20:4, OMAD, or the Custom preset
• Circular progress ring with elapsed-time ranges
• Notification at your selected time goal, when permission is granted
KEEP YOUR RECORDS
• Local fasting history and streak count
• Existing weight records remain stored on your device
SAFETY INFORMATION
The timer does not measure metabolism, ketosis, or autophagy. It does not diagnose conditions or provide medical advice. Goals are personal settings, not recommendations to fast longer. Talk with your healthcare provider before trying fasting, especially if you are under 25, pregnant or breastfeeding, or taking medication.
Source: NIH News in Health, December 2019; https://newsinhealth.nih.gov/2019/12/fast-or-not-fast
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
- Elapsed-time labels replace the previous metabolic stage claims.
- Added fasting safety information with its source.
- Removed the unused purchase screens.
- Your fasting history and timer settings are kept.
The developer, HeungYeol Kim, 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 Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- HeungYeol Kim
- Size
- 20.9 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 13.0 or later.
- iPhone
Requires iOS 13.0 or later. - iPad
Requires iPadOS 13.0 or later. - iPod touch
Requires iOS 13.0 or later. - Mac
Requires macOS 11.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2026 HeungYeol Kim