Unfed: Fasting Timer & Phases

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About this app

Most fasting apps show a simple countdown. Unfed visualizes your progression through 5 distinct metabolic phases—from Fat Burning to Deep Ketosis—with a beautiful circular timer that makes every fast a visual achievement.

TRANSFORM YOUR FASTING EXPERIENCE

Stop counting hours blindly. Understand what your body accomplishes during each moment of your fast.

• Metabolic Phase Visualization: Unlike competitors with basic timers, Unfed shows your progression through 5 phases (Anabolic → Catabolic → Fat Burning → Ketosis → Deep Ketosis) with color-coded segments. See completed phases, your current phase with live progress, and upcoming phases, all in one glance.

• Elegant Circular Timer: Premium "donut-style" design with pastel colors on deep black backgrounds. Calm, zen, and motivating—not clinical neons.

• Privacy-First: Your data stays on your device by default. No account required to start. Cloud sync is 100% optional.

• Designed for Understanding: Each phase includes clear explanations so you know exactly what's happening in your body.

FREE FEATURES (ALWAYS FREE)

The core fasting experience is completely free, with no trial limits:
• Circular Timer with 5 metabolic phases visualization
• Popular Protocols: 16:8, 18:6, 20:4, OMAD (23:1), 24h, 36h fasts
• Phase Education: Understand what happens in your body during each phase
• 7-Day History: Review your recent fasts
• Streak Tracking: Build consistency with visual streaks
• Smart Notifications: Start/end reminders and phase transitions
• Dark & Light Mode: Follows your system preference

UNLOCK PRO

Support development and unlock powerful tools:
• Unlimited History: Access all your fasting data forever
• Weight Tracking: Monitor your progress with beautiful charts
• Custom Protocols: Create fasting schedules tailored to your goals
• Native Widgets: iOS and Android home screen widgets (Small/Medium/Large)
• Detailed Phase Info: Extended scientific explanations of metabolic phases
• Cloud Sync: iCloud (iOS) or Google Drive (Android) backup

POPULAR FASTING PROTOCOLS SUPPORTED

• 16:8 — The classic. Fast 16 hours, eat in an 8-hour window.
• 18:6 — Extended fat-burning window for faster results.
• 20:4 (Warrior) — Advanced protocol for experienced fasters.
• OMAD (23:1) — One meal a day for maximum autophagy.
• 24h / 36h — Longer fasts for deep ketosis and cellular renewal.
• Custom — Design your own protocol based on your schedule.

UNDERSTAND YOUR METABOLIC PHASES

Unfed educates you on what happens during your fast:
• Anabolic (0-4h): Digestion and nutrient absorption
• Catabolic (4-12h): Glycogen depletion begins
• Fat Burning (12-16h): Your body switches to fat for fuel
• Ketosis (16-24h): Ketone production increases, mental clarity peaks
• Deep Ketosis (24h+): Autophagy activated, cellular repair maximized

Each phase is color-coded and clearly displayed on circular timer, so you always know your metabolic state.

WHY UNFED EXISTS

I'm a solo developer who believes fasting apps should help you understand your body, not just count hours. You get:
• No ads, ever
• No dark patterns or manipulative design
• Regular updates and new features
• Transparent approach, no hidden tricks
• Direct support from developer
• No server: Your data is stored locally on your device, ensuring privacy and security.

You pay for sustainable development, not bloated features you'll never use.

NATIVE WIDGETS (PRO)

Stay motivated without opening app:
• Small Widget: Circular timer + elapsed time + phase icon
• Medium Widget: Timer + protocol name + phase badges

All widgets use the same elegant pastel design as the app.

Download Unfed and start your metabolic journey today.

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Terms of use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Unfed is a fasting tracker and should not replace professional medical advice. Consult your doctor before starting any fasting regimen.
Updated on
Feb 21, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
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No data collected
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What’s new

Visualize your fast through 5 metabolic phases with our circular timer. Widgets, weight tracking, and progress insights to transform your fasting journey.
Content rating
Everyone
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App support

About the developer
MEXAR
contact@mexar.fr
60 RUE FRANCOIS IER 75008 PARIS France
+33 7 68 98 30 00

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