FastZen: Fasting & Autophagy
培 李 Health & Fitness iPhoneiPadiPod touchApple Watch
FastZen: Fasting & Autophagy is a free Health & Fitness app for iPhone and iPad by 培 李. Requires iOS 18.0. Updated August 11, 2026.
- Price
- Free
- on the App Store
- Size
- 22 MB
- Age 4+
- Updated
- Aug 11
- 2026 · v1.2
Screenshots
About FastZen: Fasting & Autophagy
FastZen makes intermittent fasting simple, calm, and easy to stick with. Whether your goal is weight loss, more energy, or better focus, and whether you follow 16:8, 18:6, 20:4, OMAD, or your own custom eating window, FastZen guides you through every fast with a beautiful timer and gentle, science-based insights. Watch your fasting ring fill in real time, see exactly which metabolic phase your body is in, and learn what's happening inside — from fat burning to ketosis and autophagy. No noise, no guilt. Just clear progress. WHY FASTZEN • Beautiful fasting timer with a live progress ring • Preset plans: 16:8, 18:6, 20:4, 23:1 (OMAD) — or set your own hours • Real-time body phases: anabolic, fat burning, ketosis, deep ketosis, autophagy • Live Activity & Dynamic Island so your fast is always one glance away • Home Screen widgets and full Apple Watch app TRACK WHAT MATTERS • Weight logging with BMI and long-term trend charts • Water & hydration tracking, synced with Apple Health • Streaks, average fast length, and progress stats • Full fasting history at a glance DESIGNED TO FEEL GOOD • Warm, minimal design that's calm to use every day • Smart reminders to start and end your fast • Share your progress with friends FastZen Pro unlocks advanced stats, weight tracking, and more to support your journey. Start your first fast today and feel the difference. Note: FastZen is for educational and wellness purposes only and is not medical advice. Consult a healthcare professional before changing your diet or fasting routine. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
What’s new
Version 1.2 · Updated August 11, 2026
Choose the way you want to stay consistent: FastZen now offers lifetime access alongside monthly and yearly plans, with clearer pricing and checkout details. We’ve also added trusted health references from the CDC, PubMed, and the Nobel Prize to the fasting body-phase and BMI guides, so you can explore the information behind your progress. Plus, we refined the paywall and account links for a smoother, more transparent experience while tracking fasts, hydration, weight, and routines. Keep building your healthy routine with more confidence.
App privacy
The developer, 培 李, reported these privacy practices to Apple.
Data Not Collected
The developer does not collect any data from this app.
Alternatives to FastZen: Fasting & Autophagy
Looking for apps like FastZen: Fasting & Autophagy? Here are 6 similar apps on the App Store. The highest rated is VOID - Intermittent Fasting (5.0/5), and all 6 are free to download.
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VOID - Intermittent Fasting
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ZenithFast: Fasting Tracker
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TaoFast
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Fazting: Fasting & Weight Loss
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168: Fasting Timer & Tracker
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极简轻断食
| App | Rating | Price | Last updated | Compare |
|---|---|---|---|---|
| FastZen: Fasting & Autophagy | – | Free | August 11, 2026 | |
| VOID - Intermittent Fasting | 5.0 / 5 (1) | Free | Sep 21, 2026 | Compare |
| ZenithFast: Fasting Tracker | – | Free | May 13, 2026 | Compare |
| TaoFast | – | Free | Mar 31, 2026 | Compare |
| Fazting: Fasting & Weight Loss | – | Free | Jun 6, 2026 | Compare |
| 168: Fasting Timer & Tracker | 5.0 / 5 (1) | Free | Oct 10, 2026 | Compare |
| 极简轻断食 | – | Free | Sep 27, 2026 | Compare |