Best Integration with Health
I love the option to track glucose, ketones, etc., and the way that it integrated with the Health app. This is my favorite fasting app.
Response from developer
Thank you so much!
Free
About
This app helps you track intermittent and extended fasting periods with a clean, focused interface. It supports various fasting schedules, custom durations, and provides detailed history and statistics to monitor your progress.
✓Intermittent and extended fast tracking
✓Custom fasting schedules
✓Fasting history and statistics
✓Reminders and notifications
✓Apple Watch companion app
✓Live Activity support
Show original description
What's New in PerfectFast
1.8.2
October 13, 2026
Back up and restore. Settings › Data now writes one file with every plan, fast and entry, plus your preferences, and a fresh installation restores it exactly. The CSV export sits beside it. A lighter Fast tab. The times under the ring are plain text on the page, Started at one edge and Ends at the other, and the ring floats between the title and the one button. Start Fast is the due fast's only action, and when you are late it asks whether to count from the scheduled start. Journal: every fast on the day's timeline says how it went, and a touch and hold on its start or end edits or deletes it. Completion screen: the ring grows into the room a larger phone leaves. Also: the timer ring is full width again on 6.1-inch phones, and smaller fixes throughout.
MoreUser reviews
FAQ
What is PerfectFast?
PerfectFast is a free application designed to help users track intermittent and extended fasting periods. It offers a focused experience with features like custom schedules, reminders, and progress statistics.
Does PerfectFast have ads?
No, PerfectFast does not contain advertisements. The app is completely free and ad-free, providing an uninterrupted user experience.
What devices does PerfectFast support?
PerfectFast is available for iPhone and Apple Watch. The Apple Watch companion app allows for convenient tracking and monitoring directly from your wrist.
How often is PerfectFast updated?
The latest version of PerfectFast is 1.5.1, and it was last updated on August 22, 2026. This indicates a recent update, suggesting ongoing development and support.
What is the age rating for PerfectFast?
PerfectFast has an age rating of 12+. This means it is generally considered suitable for users aged 12 and older.
Can I export my fasting data from PerfectFast?
Yes, PerfectFast supports local data export. Your fasting data remains on your device unless you choose to export or share it.
What fasting schedules does PerfectFast support?
PerfectFast supports common fasting schedules and also allows for custom durations. Users can set up personalized fasting plans to suit their needs.
Does PerfectFast offer Live Activity support?
Yes, PerfectFast offers Live Activity support on compatible devices. This allows users to view their current or scheduled fast directly on their device's lock screen.
