B17 Inclinometer

Real-time sailboat heel

Free · Designed for iPad. Not verified for macOS.

Turn your phone into your sailboat's inclinometer: real-time heel, colors tuned to your optimal range and one-tap calibration. No internet, no accounts. Inclinometer turns your phone into a heel indicator for your sailboat. Mount it in landscape, calibrate in seconds and sail with a clear angle readout, visible from meters away and in full sunlight. HOW IT WORKS The entire screen background is the indicator: blue when you are below your optimal range, green when you are inside it, orange/red when you are over. The huge number shows your heel in degrees, and the app tells you whether you are heeling to port or starboard. FEATURES • Real-time heel from your phone's motion sensors. • Huge, high-contrast number readable from the whole cockpit. • Colors tuned to your optimal range, with stable transitions (no flicker). • Port, starboard or level indication. • Boat profiles: each boat with its own optimal range. • One-tap mount calibration: compensates the bracket angle. • Screen stays awake while measuring. • Works 100% offline. No accounts, no ads, no data collection. BUILT FOR SAILING Nautical-instrument interface: minimal, high contrast, no menus in the way. Mount the phone, calibrate and forget it — just glance at the color. DISCLAIMER This app is a reference tool and does not replace certified navigation instruments. Accuracy may vary depending on the device, the mount and sailing conditions.

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The developer, Yon Belausteguigoitia Fierro, 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
    • Yon Belausteguigoitia Fierro
    Size
    • 40.6 MB
    Category
    • Sports
    Compatibility
    Requires iOS 16.4 or later.
    • iPhone
      Requires iOS 16.4 or later.
    • iPad
      Requires iPadOS 16.4 or later.
    • Mac
      Requires macOS 12.0 or later and a Mac with Apple M1 chip or later.
    Languages
    • English
    Age Rating
    4+
    Copyright
    • © 2026 B17
  • Privacy Policy

    • More by Yon Belausteguigoitia Fierro

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