Fastyra

Private intermittent fasting

$1.99 · Designed for iPhone. Not verified for macOS.

One simple purchase. Plan, track and log your daily fasts with no ads, subscriptions or accounts. Includes widgets and an Apple Watch app. Fastyra turns daily fasting into a clear, visual cycle that is easy to follow. It is a premium app with no ads, subscriptions or accounts. CHOOSE YOUR RHYTHM Start with 12:12, 14:10, 16:8, 18:6, 20:4 or 23:1, or create a custom daily plan from 8 to 23 hours. Choose your fasting and eating times, active days, and one to six meals within your eating window. FOLLOW THE CYCLE AT A GLANCE A colourful dial brings your progress, planned meals and educational fasting stages together in one place. Tap a stage to learn what it represents. The stages are time-based estimates, never measurements of your body. RECORD REAL LIFE, NOT A PERFECT STREAK Start or finish with confirmation and adjust the time if you tapped late. Add a forgotten fast or correct a previous entry without rewriting the plan you followed that day. SEE YOUR PATTERNS Explore one month, three months or one year with charts for duration, goals, consistency and total time. Rest days and incomplete records remain clear, with neutral language and no guilt. REMINDERS ON YOUR TERMS Choose separate alerts for fast starts, planned finishes, meals and educational stages. Set advance notice, quiet hours and discreet notification text. Fastyra also supports automatic, 12-hour and 24-hour time formats. IPHONE, WIDGETS AND APPLE WATCH Check useful status and progress widgets on your Home Screen or Lock Screen. The included Apple Watch app shows the essentials and lets you start or finish a fast with confirmation. YOUR DATA STAYS YOURS Your history is stored locally on your iPhone. Fastyra has no registration, backend, advertising, third-party analytics or tracking. It does not ask for your weight, age, sex, location, contacts or Health data. Export a complete JSON backup or your history as CSV, restore when needed, or erase all local data at any time. Available in English, Spanish, German and French, with a language selector inside the app. Fastyra is an educational tool for time and habit planning, not a medical device or medical advice. Its stage markers do not measure glucose, insulin, ketones, fat use or cellular activity. If fasting may affect a health condition, medication, pregnancy or eating disorder, seek qualified guidance before starting. Stop if you feel unwell.

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The developer, Adrian Guerra Marrero, 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 Not Collected

    The developer does not collect any data from this app.

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

    Accessibility

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

    Information

    Seller
    • Adrian Guerra Marrero
    Size
    • 17.7 MB
    Category
    • Health & Fitness
    Compatibility
    Requires iOS 18.0 or later.
    • iPhone
      Requires iOS 18.0 or later.
    • Mac
      Requires macOS 15.0 or later and a Mac with Apple M1 chip or later.
    • Apple Vision
      Requires visionOS 2.0 or later.
    • Apple Watch
      Requires watchOS 11.0 or later.
    Languages
    English and 3 more
    • English, French, German, Spanish
    Age Rating
    13+
    • 13+
    • Learn More
    • Infrequent
      Medical Treatment information

      Contains
      Health or Wellness Topics
    Copyright
    • © 2026 Adrian Guerra Marrero
  • Privacy Policy

    • Supports

    • Family Sharing

      Up to six family members can use this app with Family Sharing enabled.

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