Maritime Master
Education - Free
The complete maritime learning companion. Explore interactive radar and sonar displays, learn the COLREGs, buoyage, lights and signal flags, then test yourself with exam style questions. Watchkeeping theory made clear, visual and easy to revise.
5.0 Stars
Maritime Master is the complete maritime learning companion, bringing interactive tools, the rules of the road, seamanship, and exam practice together in one free app. Built for everyone from newcomers to future watch officers, it turns the theory behind life at sea into something you can see and explore.
Content is organised into progressive tiers, so you can start with the basics of buoyage and knots and work your way up to radar interpretation and full mock exams. It is maritime education designed to be explored, not just read.
See It in Action
Explore an interactive radar display and sonar and echosounder views that help you learn to interpret what you are seeing. Look around the ship, the bridge, and the engine, and try the VHF radio walkthrough, all as visual learning aids rather than tools for operating real equipment.
Rules and Recognition
Study the full COLREGs including sound signals, learn IALA buoyage with an interactive buoy placement game, and get to know night lights, day shapes, and relative bearings. The International Code of Signals section covers every flag, with a signal flag game that makes recognition stick.
Seamanship and Safety
Learn ropework and knots, explore the parts of a ship, sail, and sailboat, and browse the nautical glossary. Health and safety content covers fire extinguisher types, safety signage, and personal protective equipment, and an engine viewer gives you a look below decks.
Weather and Meteorology
Understand the Beaufort scale, read wind barbs, and identify cloud types with clear visual references designed for quick revision on the move.
Test Yourself
Put your knowledge on the line with dedicated COLREG exams and mixed papers of twenty or forty questions built from real study topics. Repeat them as often as you like and watch your scores climb.
Accessible to Every Learner
Adjustable fonts, colours, and contrast options keep everything readable, whatever your preference. The app works offline, needs no account, and shows no ads.
Who It Is For
Ideal for maritime students, cadets, deck crew, sea scouts, and anyone curious about watchkeeping and seamanship. Everything in the app is for learning and study only, not for real-world navigation, and it is not a substitute for approved training or equipment.
Part of the Maritime Master Family
When you are ready to specialise, Maritime Master OOW goes deeper into watchkeeping theory, Maritime Master Radar is a dedicated radar and ARPA practice simulator, and Maritime Master COLREGs gives the rules of the road the full treatment.
Frequently Asked Questions
Is Maritime Master free? Yes. The app is free to download and use, with no ads and no subscription.
Do I need maritime experience to start? No. Content is tiered from beginner friendly topics like buoyage, flags, and knots up to advanced watchkeeping material, so you can start wherever suits you.
Can the tools be used for real navigation? No. Everything in the app is an educational aid. Always use approved equipment, official publications, and proper training for anything on the water.
Download Maritime Master free on the App Store for iPhone and iPad and start exploring life at sea today.