B17 Inclinometer

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.