3-Day Fast - 72h Water Fast
Autophagy Timer & Tracker
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
The only app built specifically for 72-hour water fasts.
Track 8 science-backed fasting phases in real-time — from fed state to deep autophagy. Know exactly what's happening in your body, which supplements are safe, and how to break your fast properly.
REAL-TIME PHASE TRACKING
Watch your body transition through 8 distinct phases — from fed state to deep autophagy. Know exactly what's happening at every hour. Each phase shows you the science-backed changes occurring in your body right now.
SUPPLEMENT GUIDE
Know what's safe to take during your fast (magnesium, electrolytes, creatine) and what breaks your fast (collagen, BCAAs). No more guessing.
MILESTONE CELEBRATIONS
Hit 24h, 48h, and 72h markers with visual celebrations. See your journey timeline and know what benefits you're unlocking at each stage.
REFEEDING GUIDE
How you break your fast matters as much as the fast itself. Get clear guidance on what to eat, what to avoid, and how to ease back into food safely.
LEARN AS YOU FAST
Built-in guides cover everything: Why 72 hours? When does autophagy start? Day-by-day breakdown. Safety information. All backed by current research.
PRO FEATURES (one-time purchase, no subscription)
- All 8 fasting phases with detailed guidance
- Badges and achievements
- Cloud sync across devices
- Box breathing exercise for hunger cravings
Whether you're attempting your first 72-hour fast or you're an experienced faster, 3-Day Fast gives you the knowledge and tools to fast safely and effectively.
Safety Notice: Extended fasting can affect blood sugar, blood pressure, and electrolyte balance. Consult a healthcare provider before fasting, especially if you have medical conditions, take medications, or have a history of eating disorders. This app does not provide medical advice.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
• Clearer upgrade screen when the App Store can't be reached — with one-tap retry
• Small fixes and stability improvements
The developer, Tomasz Mikolajewicz, 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 Linked to You
The following data may be collected and linked to your identity:
- Contact Info
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Purchases
- Identifiers
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Tomasz Mikolajewicz
- Size
- 38.6 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 13.0 or later.
- iPhone
Requires iOS 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
13+
- 13+
- Infrequent
Medical Treatment information
Contains
Health or Wellness Topics
- In-App Purchases
Yes
- Pro Lifetime $9.99
- Copyright
- © 2026 Mindful Apps Studio
