bonkproof!

Precision Fueling for Cyclists

Free · Designed for iPad. Not verified for macOS.

Wattage, duration, FTP — bonkproof! delivers science-based targets for carbs and fluid. No guessing. Just numbers. Ever had that feeling? Two hours in, legs going heavy, head starting to spin — and you know you didn't eat enough. Again. bonkproof helps you avoid that. No guesswork, no rules of thumb — just science-based estimates, calibrated to your data. Enter your weight and FTP once, then before each ride just add power and duration. The rest is automatic. What you get: • Carbs per hour - estimated target for your training zone • Fluid needs per hour - based on weight, sweat rate, and temperature • A fueling schedule - what to eat and drink, and when • A packing checklist - gels, bottles, everything at a glance Built for road cyclists who want to know what their body actually needs. No account, no subscription, no cloud. Everything stays on your device. Estimated values are based on sports science guidelines (Jeukendrup 2014, Sawka et al. 2007, Thomas et al. 2016) and are not medical advice. If you have any health conditions, please consult a physician before use.

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New in 2.5: • Barcode scanner: Scan the barcode of your gel, bar or snack — nutrition is pulled automatically from Open Food Facts and saved as your own product. Find it in Settings → Custom Products. Manual entry stays available, of course. • Privacy: the barcode is looked up once, only when scanning — no tracking, no ads.

Version 2.5

The developer, Daniel Muschinski, 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
    • Daniel Muschinski
    Size
    • 1.8 MB
    Category
    • Sports
    Compatibility
    Requires iOS 26.0 or later.
    • iPhone
      Requires iOS 26.0 or later.
    • iPad
      Requires iPadOS 26.0 or later.
    • Mac
      Requires macOS 26.0 or later and a Mac with Apple M1 chip or later.
    Languages
    • English and German
    Age Rating
    4+
    Copyright
    • © 2026 Daniel Muschinski
  • Developer Website
  • Privacy Policy

    • More by Daniel Muschinski

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