# Marinus: maritime rules

> COLREGs, IRPCS, IALA & more!

Canonical page: [https://chrome-stats.com/d/id536108872](https://chrome-stats.com/d/id536108872)

## Overview

- **ID:** `id536108872`
- **Platform:** Apple
- **Type:** Apple app
- **Status:** Available
- **Publisher:** Alejandro
- **Category:** Education
- **Rating:** 4.40 / 5 (215 ratings)
- **Version:** 5.3.1
- **Last updated:** 2025-12-02
- **First published:** 2012-07-04
- **Size:** 113 MB
- **Data as of:** 2026-09-19
- **Store listing:** [Apple App Store](https://apps.apple.com/us/app/marinus-maritime-rules/id536108872)
- **Website:** [https://www.marinusapps.com/en/](https://www.marinusapps.com/en/)
- **Privacy policy:** [https://www.marinus.es/interno/marinus/legal/Privacy.pdf](https://www.marinus.es/interno/marinus/legal/Privacy.pdf)

## Description

Marinus: Maritime Rules is the essential navigation rules Chrome extension, built by sailors for sailors. It provides clear, instant answers on COLREGs, IRPCS, IALA, and more, with practical tools to learn flags, lights, day shapes, Morse, and safe maneuvering.

Features include Flags, Meteo (Beaufort and Douglas scales and cloud identification), Sounds, Lights, Day Shapes, Maneuvers, Morse, Buoys (IALA), Radio, ColRegs, Quiz, and a Map for visualizing concepts. PRO features unlock with an affordable subscription to keep the tool up to date. Join thousands of sailors who rely on Marinus for quick, confident navigation—questions? contact info@marinus.es.

## Rankings

- #103,648 — Overall

## Review summary

Overall, user reviews are overwhelmingly positive, praising Marinus for its extensive maritime content and ease of use, and noting it as a helpful training aid for yacht courses. Reviewers appreciate having a lot of information at their fingertips and see value in the free version. The app is regarded as a handy reference and a valuable resource for mariners.

### Pros

- Extensive, relevant maritime information
- Easy to use / user-friendly
- Helpful for yacht courses / training
- Information readily accessible at fingertips
- Free version is sufficient / appreciated

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- [Navigation Rules Pro](https://chrome-stats.com/d/id494309072) — 4.80 / 5
- [Sail Safe](https://chrome-stats.com/d/id627937212)
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- [cMate-lite](https://chrome-stats.com/d/id1496589839) — 5.00 / 5
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- [Simple Colregs](https://chrome-stats.com/d/id6748556558)
- [Navigation Rules](https://chrome-stats.com/d/id327936562) — 4.80 / 5

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Source: [Chrome-Stats](https://chrome-stats.com/d/id536108872)