QoFast: Intermittent Fasting

Extended Fasts & Ketosis Timer

Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.

New: watch 13 metabolic milestones unlock in real time, from fat burning to autophagy. The only app built for both 16:8 and multi-day extended fasts. 7-day free trial. Tired of dieting without results? Lose weight naturally with intermittent fasting instead of counting calories, and go further than any other app when you're ready. THE ONLY APP FOR BOTH INTERMITTENT AND EXTENDED FASTING QoFast is built for the full journey: daily 16:8 windows AND multi-day extended fasts with a guided Prep > Fast > Refeed structure. Most apps stop at 24 hours. QoFast safely takes you to 3, 5, even 7 days. SEE YOUR METABOLISM IN REAL TIME Watch your body move through 13 milestones as you fast: Fed > Fat Burning (4h) > Ketosis (12h) > Autophagy (24h) and beyond. Real-time metabolic-zone education tells you exactly what's happening inside you, with milestone notifications at every stage. FASTING PLANS FOR EVERY LEVEL - 16:8, 18:6, 20:4 and OMAD (one meal a day) - Extended 3, 5 and 7-day fasts with prep and refeed guidance - Fully custom schedules, including fasts over 24 hours (Pro) A SMART FASTING TIMER THAT LIVES WHERE YOU DO - Live Activity and Dynamic Island: your timer on the lock screen, always a glance away - Apple Watch app and Wear OS support - Apple Health and Health Connect sync COMPLETE FASTING TRACKER - Log water, mood and energy - Stats, heatmaps, streaks and notes - CSV export of your full history (Pro) FREE VERSION Track intermittent fasts, use the metabolic timer, log water and mood, and build streaks. Free, forever. QoFast PRO Unlock extended multi-day fasts, auto-cycling schedules, unlimited history and analytics, custom fasts over 24 hours, and CSV export. SUBSCRIPTION QoFast Pro is available as a weekly, monthly or yearly subscription, with a 7-day free trial on eligible plans. Current prices are shown in the app before you confirm your purchase. Payment is charged to your Apple ID at confirmation of purchase. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period. Manage or cancel anytime in your App Store account settings. DISCLAIMER QoFast is for informational purposes only and is not medical advice. Consult your doctor before starting any fast, especially extended or multi-day fasts, or if you are pregnant, nursing, or have a medical condition. Support: info@qorinx.com Privacy Policy: https://qofast.com/privacy Terms of Use (EULA): https://qofast.com/terms

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Small improvements behind the scenes.

The developer, Qorinx OU, 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:

    • Purchases
    • Contact Info
    • User Content
    • Identifiers
    • Usage Data
  • Data Not Linked to You

    The following data may be collected but it is not linked to your identity:

    • Diagnostics

Privacy practices may vary, for example, based on the features you use or your age. Learn More

The developer has not yet indicated which accessibility features this app supports. Learn More

Seller
  • Qorinx OU
Size
  • 74.2 MB
Category
  • Health & Fitness
Compatibility
Requires iOS 15.0 or later.
  • iPhone
    Requires iOS 15.0 or later.
  • iPod touch
    Requires iOS 15.0 or later.
  • Mac
    Requires macOS 12.0 or later and a Mac with Apple M1 chip or later.
  • Apple Vision
    Requires visionOS 1.0 or later.
  • Apple Watch
    Requires watchOS 11.0 or later.
Languages
  • English
Age Rating
16+
In-App Purchases
Yes
  • QoFast Pro $49.99
  • QoFast Pro $2.99
  • QoFast Pro $9.99
Copyright
  • © 2026 Qorinx