FYRA : It's Simple Physics

In − Out = Weight

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

Calories don’t need motivation. They need math. Fyra tracks calories in and calories out to show the only thing that matters: the difference. Calories are simple physics. If you eat more than you burn, you gain weight. If you burn more than you eat, you lose weight. Fyra is built around that one equation — and nothing else. Fyra tracks calories consumed and calories burned, then shows you the net result. From that, it predicts weight change and displays clear trends over time. No guesses, no motivation tricks, just math. Fyra deliberately avoids what most calorie apps add. There is no AI coaching. There are no meal plans. There are no challenges, streaks, or guilt-driven nudges. Fyra is a tool, not a lifestyle brand. The app integrates natively with Apple Health to sync activity and weight data automatically. You can log food using barcode scanning, search, or manual entry. Activities can be added manually when needed. Everything is designed to answer one question clearly and quickly: what is my calorie balance, and what does it mean? Fyra is built for people who already understand calories. It is for users who are tired of bloated fitness apps, constant upsells, and artificial encouragement. If you believe weight change comes down to calories in versus calories out, Fyra will feel refreshingly honest. You are not paying for AI hype or coaching scripts. You are paying for a clean, reliable tool that respects your intelligence. Calories in. Calories out. Nothing else. Privacy Policy: https://youok.uk/others/fyra/privacy/ Terms of Service: https://youok.uk/others/fyra/eula/

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The developer, Joseph Raymond, 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
    Joseph Raymond
    Size
    5.9 MB
    Category
    Health & Fitness
    Compatibility
    Requires iOS 26.2 or later.
    • iPhone
      Requires iOS 26.2 or later.
    • iPad
      Requires iPadOS 26.2 or later.
    • Mac
      Requires macOS 26.2 or later and a Mac with Apple M1 chip or later.
    • Apple Vision
      Requires visionOS 26.2 or later.
    Languages
    English
    Age Rating
    13+
    In-App Purchases
    Yes
    Copyright
    © Joseph Raymond
  • Privacy Policy

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