---
title: "Harry's Sailor — App Overview"
url: https://marlvel.ai/intel-report/sports/com-harrys-navigator
category: Sports
developer: Harald Schlangmann
platforms: ios
rating: 5.0 (1 ratings)
pricing: paid
report_level: overview
generated: 2026-05-04
last_verified: "2026-05-04T09:21:11.109Z"
---

<!-- SECTION: Key Insight -->
> **Key Insight:** This app is a technical navigation aid that prioritizes high-precision GPS data and specific sailing-related safety and performance metrics.

<!-- SECTION: Quick Facts -->
| Metric | Value |
|--------|-------|
| Category | Sports |
| Rating | 5.0 ★ (1) |
| Pricing | paid |
| Platforms | iOS |
| Latest Version (iOS) | 25.0.0 |
| Developer | Harald Schlangmann |

<!-- SECTION: Summary -->
## What is Harry's Sailor?

Harry's Sailor is a specialized GPS navigation tool designed for sailors, utilizing a proprietary GPS engine optimized for low-vessel speed accuracy. The app provides comprehensive sailing support, including real-time heeling visualization, racing rule guidance, and integrated navigation tools.

<!-- SECTION: Key Features -->
## Key Features

- **Heeling Visualization**: Measures vessel heeling and provides visual alarms when angles exceed 20 or 25 degrees.
- **Racing Rule Support**: Displays Racing Rule #10 to assist with right-of-way identification between port and starboard-tack boats.
- **Navigation Suite**: Supports course definition via polar coordinates, waypoints, or manual input with full Google Maps integration.
- **Low-Speed GPS Algorithms**: Utilizes specialized algorithms to maintain accurate speed data where standard GPS signals typically struggle.

<!-- SECTION: Target Audience -->
## Who is it for?

Competitive and recreational sailors requiring precise navigation and performance monitoring on the water.

<!-- SECTION: Links -->
## Links

- [App Store](https://apps.apple.com/us/app/harrys-sailor/id319244049?uo=2)
- [Full Intelligence Report](https://marlvel.ai/intel-report/sports/com-harrys-navigator)

---
*This is an overview report. Sentiment analysis, competitive landscape, and SWOT analysis are available in the [full intelligence report](https://marlvel.ai/intel-report/sports/com-harrys-navigator).*
*Generated by [Marlvel.ai](https://marlvel.ai) — Independent app intelligence.*