PerfectFast

PerfectFast

Fasting timer and tracker

2 ratings
1 review
Free

Details

  • Released
  • Updated

Features

PerfectFast screenshot #1 for iPhone
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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
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What's New in PerfectFast

1.5.2

September 6, 2026

Your fast at a glance, on every screen. Widgets, the Live Activity, and the Apple Watch app now share one clear layout: your timer, your target, and a timeline bar from start to end. The medium widget reads like a timeline. Your plan and current fasting stage head the card, the timer in your chosen mode takes center stage, and the progress bar runs between your start and end times. On the Lock Screen, the circular widget shows your target inside the ring, and the rectangular widget gives its full width to the timer. The Live Activity follows the same layout, with your start and end times at the ends of the bar and a clear "Completed" state once you pass your target. On watchOS 11 and later, the Smart Stack gets a real card for your fast: what the timer counts, the fast and its target, and the bar, instead of a cryptic stack of icons. The watch app itself is tighter: no title row, and the readings sit above a timeline, so your start and end times fit on every watch size. The rectangular complication was redesigned to match, and complications now preview correctly in the Watch app on your iPhone. Also fixed: widgets, complications, and the Live Activity could go blank two or three days into an extended fast. They now stay live all the way through.

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User reviews

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!

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.