# Maritime Master - COLREGs — Remember. Learn. Apply.

> Remember. Learn. Apply. (iPhone/iPad app by MARITIME MASTER LIMITED.)

- Source: https://appshunter.io/ios/app/maritime-master-colregs/id6756098554 (this page in markdown: same URL + `.md`)
- Developer: [MARITIME MASTER LIMITED](https://appshunter.io/developer/1107589346)
- Category: Education, Reference
- Price: $3.99 (on sale, was $4.99)
- Age rating: 4+
- Requires: iOS 17.6 · 5 MB
- Languages: American English
- Released: 2026-02-20
- Data updated: 2026-08-18
- User reviews in markdown: https://appshunter.io/ios/app/maritime-master-colregs/id6756098554/reviews.md

## What is Maritime Master?

Stop memorising the regulations. Start mastering them.

Maritime Master - COLREG is the definitive interactive guide to the International Regulations for Preventing Collisions at Sea (COLREGs / IRPCS). Designed for deck officers, yachtmasters, and serious boaters, this app replaces dry textbooks with intuitive visual simulations.

Whether you are preparing for your exams, or simply need a reliable pocket reference at sea, Maritime Master helps you learn faster and retain more.

Most apps just copy-paste the rules. We bring them to life.
Interactive Scenarios: Don’t just read Rule 14 (Head-on) or Rule 15 (Crossing), control the vessels on screen to see exactly who gives way.
Visual Light Sectors: Build the "Mercedes" arc yourself. Finally understand exactly what 112.5°, 135°, and 225° look like in real life.
Smart Quizzes: Test your knowledge with "Exam Trap" questions that highlight common mistakes students make in oral exams.

KEY FEATURES
Complete Rule Book (1-38): Full, searchable text of the Steering and Sailing Rules, perfectly formatted for mobile.
Navigation Lights & Shapes: Toggle between Day, Night, and Fog modes to master Rule 20. See instantly how shapes change for RAM, CBD, NUC, and Fishing vessels.
Restricted Visibility (Rule 19): A dedicated Radar Simulator helps you decide whether to turn to starboard or reduce speed in fog. 
Sound & Distress Signals: Interactive buttons to hear blast patterns (Rule 34/35) and visualize Annex IV distress signals like Red Flares and Smoke. 
Steering Rules Visualized: * Overtaking (Rule 13): Clearly see the overtaking sector vs. crossing.
Narrow Channels (Rule 9): Master positioning and bends. 
TSS (Rule 10): Visualize lane discipline and crossing angles. 
Offline Ready: No internet required. Study in your bunk, on watch (if allowed!), or commuting.

PERFECT FOR:
Student Officers: Cadets, OOW, Chief Mate, Master 3000 (MCA / USCG / International).
Yachting Pros: RYA Yachtmaster Offshore / Ocean, Master 200/500.
Leisure Boaters: Day Skipper, Powerboat Level 2, ICC
Sailing Schools: A perfect visual aid for instructors teaching the Rules of the Road.

INCLUDES:
Part A: General
Part B: Steering and Sailing Rules (Sections I, II, III)
Part C: Lights and Shapes
Part D: Sound and Light Signals
Part E: Exemptions
Annexes (Distress Signals, etc.)

Download Maritime Master - COLREG today and pass your COLREGs exams with confidence.


## Version history (last 4 releases)

### 1.3 — 2026-02-24

Fixed a UI issue on the main screen
Other bug fixes and improvements

### 1.2 — 2026-02-17

Final update and QA

### 1.1 — 2026-02-07

Bug Fixes & Improvements

### 1.0 — 2026-01-19

No release notes.

## Apps similar to Maritime Master

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Master-Nav: COLREGS IALA Tests](https://appshunter.io/ios/app/master-nav-colregs-iala-tests/id6758554000) | — | Free | Education |
| [BeAdvanced](https://appshunter.io/ios/app/beadvanced/id6701985016) | — | $0.99 | Education |
| [The OOW Bible](https://appshunter.io/ios/app/the-oow-bible/id6760291715) | — | Free | Education |
| [IALA System](https://appshunter.io/ios/app/iala-system/id6472812615) | — | $0.99 | Education |
| [MARPOL Consolidated](https://appshunter.io/ios/app/marpol-consolidated/id1439812665) | 4.5 (2) | $14.99 | Education |
| [HMS ColRegCards](https://appshunter.io/ios/app/hms-colregcards/id6759050269) | — | Free | Education |

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All apps by MARITIME MASTER LIMITED: https://appshunter.io/developer/1107589346

## Related topics

[euro boat master](https://appshunter.io/ios/topics/euro-boat-master) · [boat master](https://appshunter.io/ios/topics/boat-master) · [master voyages](https://appshunter.io/ios/topics/master-voyages)

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*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 2026-08-18.*