Maritime Master - OOW

Maritime Master - OOW

Radar, COLREGs, OOW & Calcs

1 ratings
2 reviews
$9.99

Details

  • Released
  • Updated
  • August 1, 2025
  • July 1, 2026

Features

Maritime Master - OOW video #1 for iPhone
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Maritime Master - OOW screenshot #13 for iPhone
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About

Master maritime knowledge with this comprehensive app. Practice radar plotting, perform essential navigation and ship calculations, and review nautical regulations and procedures. Includes interactive learning tools and exam preparation features for deck cadets and officers.

Radar plotting simulator
Navigation and ship calculation suite
Nautical regulations library
COLREGs mastery tools
Interactive learning games
OOW progress tracker
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What's New in Maritime Master

2.3.3

July 1, 2026

6-Month Content Review Every six months we re-check all learning content against the latest IMO conventions and this is that update. We've reviewed every reference page, calculator and quiz, and corrected what needed it: GMDSS sea areas (2024 SOLAS), COLREG distress signals, MARPOL discharge rules, the sunrise/sunset calculator and more. We've also added quick links to the full Maritime Master app family in the Info tab. Fair winds!

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User reviews

Awesome!

There isn't a ton of heavy theory, but as a visual learner it really helps me understand and remember things better. It’s more of a quick reference and refresher tool than a hardcore theory app, and it does that job brilliantly.

Great tool for OOW.

Response from developer

Thanks so much for the awesome review, Davos1987! You’ve described exactly what we set out to build with Maritime Master, a visual, bite-size refresher you can dip into in quick sessions, rather than a heavy theory book. We’re really glad it’s helping you understand and remember things for OOW, we wanted an app that helps in both exam prep and on-the-job learning. Fair winds and following seas, and thanks again for using the app!

Great resource for officers

This is a great app for quick references and calculations. I will be recommending this to my students.

It’s a good app to help in exam preparation and officers in training.

It would be good to see some more interactive sections as that does really aid learning.

The whole app works offline which is a bonus!
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Developer apps

FAQ

What is Maritime Master used for?

Maritime Master is an educational app designed for maritime professionals and students. It helps users study radar plotting, perform various navigation and ship calculations, and master the Rules of the Road (COLREGs).

What types of calculations can Maritime Master perform?

Maritime Master offers a suite of calculations including Speed–Time–Distance, ETA, Dead Reckoning, Course & Distance, Set & Drift, and Fix Position. It also covers terrestrial, celestial, stability, and meteorological calculations.

Does Maritime Master include COLREGs information?

Yes, Maritime Master provides comprehensive coverage of the Rules of the Road (COLREGs), including shapes and sound signals, the International Code of Signals (ICOS), and IALA buoyage systems (A & B).

How does Maritime Master help with exam preparation?

The app includes features like flashcards, ICOS Hangman, a Buoy Night-Light game, and an OOW progress tracker to help users test their knowledge and prepare for certification exams.

What maritime regulations are covered in Maritime Master?

Maritime Master includes quick-reference guides for essential regulations such as SOLAS, MARPOL, STCW, ISM Code, ISPS Code, and GMDSS.

Is Maritime Master available on multiple devices?

Yes, Maritime Master is supported on both iPhone and iPad devices, allowing users to study and reference information across different Apple platforms.

What is the price of Maritime Master?

Maritime Master is a paid application, with a price of $9.99. This one-time purchase grants access to all its features and content.

How often is Maritime Master updated?

The app was last updated on February 25, 2026, indicating a commitment to maintaining and improving its content and functionality. Users can expect regular updates to reflect current maritime standards and practices.