Fastual: Autophagy Timer
Fasting Phase & Streak Tracker
Only for iPhone
Free
iPhone
Track your metabolic phases in real time, from fat burning through ketosis to autophagy. One-tap fasting with streak tracking and water logging. No account needed.
Fastual - Your Fasting Ritual, Visualized
See what's happening inside your body as you fast. Fastual tracks your metabolic phases in real time - from anabolic digestion through ketosis and autophagy - with a calm, organic interface designed for daily use.
REAL-TIME METABOLIC PHASES
Watch your body progress through 7 fasting stages: Anabolic → Catabolic → Fat Burning → Ketosis → Autophagy → Deep Repair → Extended. Each phase comes with a clear explanation of what's happening biologically, so you understand your fast - not just time it.
ONE-TAP FASTING TIMER
Start fasting instantly. Choose from popular protocols like 16:8, 18:6, 20:4 (Warrior), or OMAD (23:1). The expanding ring visualizes your progress without anxiety - no ticking clock, just calm momentum.
STREAK & HISTORY TRACKING
Build consistency with streak tracking. Review your complete fasting history, see your average fast duration, and watch your streaks grow over time. Every completed fast is logged automatically.
WATER TRACKER
Stay hydrated during your fast with a quick-add water logger. Customize your glass size, set reminders, and keep your hydration on track - all without leaving the timer screen.
PRIVACY BY DESIGN
Your biological data stays on your device. No account creation. No cloud sync. No tracking. Fastual works entirely offline - because your fasting journey is yours alone.
DARK MODE FIRST
The "Bioluminescent" interface is designed for late-night fasting checks and early-morning starts. Reduced eye strain, premium aesthetics, and a design that feels like a ritual - not a fitness app.
FASTUAL IS FOR YOU IF:
• You want to understand your metabolic phases, not just count hours
• You value clean, calm design over feature-heavy fitness apps
• You prefer privacy and offline functionality over social features
• You're building a sustainable fasting habit through streaks and consistency
MEDICAL DISCLAIMER
Fastual is a wellness tracking utility designed for informational and educational purposes only. It is not a medical device and does not provide medical advice, diagnosis, or treatment. The metabolic phases described are general educational summaries of biological processes and should not be interpreted as personalized medical guidance.
Intermittent fasting is not suitable for everyone, including pregnant or nursing women, individuals with a history of eating disorders, or those with certain medical conditions. Always consult a physician or healthcare professional before starting any fasting protocol.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
This update includes minor UI improvements and bug fixes. Thank you for fasting with Fastual!
The developer, Redjon Prengzi, 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 Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Location
- Identifiers
- Usage Data
Data Linked to You
The following data may be collected and linked to your identity:
- Location
- Identifiers
- Usage Data
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Redjon Prengzi
- Size
- 53.6 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 15.1 or later.
- iPhone
Requires iOS 15.1 or later. - iPod touch
Requires iOS 15.1 or later.
- iPhone
- Languages
- English
- Age Rating
13+
- 13+
- Contains
Advertising
Health or Wellness Topics
- Copyright
- © 2026 Fastual. All rights reserved.