# B17 Inclinometer — Real-time sailboat heel

> Real-time sailboat heel (iPhone/iPad app by Yon Belausteguigoitia Fierro.)

- Source: https://appshunter.io/ios/app/b17-inclinometer/id6797312587 (this page in markdown: same URL + `.md`)
- Developer: [Yon Belausteguigoitia Fierro](https://appshunter.io/developer/6783229556)
- Category: Sports, Navigation
- Price: Free
- Age rating: 4+
- Requires: iOS 16.4 · 39 MB
- Languages: American English
- Released: 2026-08-18
- Data updated: 2026-08-23
- User reviews in markdown: https://appshunter.io/ios/app/b17-inclinometer/id6797312587/reviews.md

## What is B17 Inclinometer?

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.


## Version history (last 1 release)

### 1.0 — 2026-08-18

No release notes.

## More apps by Yon Belausteguigoitia Fierro

- [Regatista](https://appshunter.io/ios/app/regatista/id6783229554)

All apps by Yon Belausteguigoitia Fierro: https://appshunter.io/developer/6783229556

---

*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-23.*