Seabook Maritime vs Master

Seabook serves as a key information source for seafarers and shore-based employees to promote safer seas and cleaner waters. This easy-to-use, accessible-offline mobile app serves as a reference tool for key elements of Ship stability, Navigation, COLREG and Marine engineering, and is designed for seafarers, cadets, maritime students and master mariners alike. Seabook contains details on; 1) COLREG (International Regulations for Preventing Collisions at Sea) 2) GMDSS (Global Maritime Distress and Safety System) 3) International Code of Signals 4) Marine Engineering 5) Marine Meteorology 6) Shipboard Safety 7) Health at Sea 8) Life Saving Appliances 9) Shipmanagement and Business 10) Navigation at Sea 11) Ship Stability 12) Country Flags 13) Ropework 14) Knots 15) more and more enriched contents ...

Master-Nav is a progressive COLREGS learning system developed by a Master Mariner. The COLREGS are notoriously difficult to learn and retain — Master-Nav makes it significantly easier through an interactive system built around how your brain actually works. Instead of guessing through random question banks, Master-Nav guides you step by step through every rule from start to finish. Wrong answers are revisited until the rules stick — properly. Complex regulations are broken down into learnable chunks — bite-sized sections supported by mnemonics, memory aids and interactive visuals designed around how the brain actually retains information. Every incorrect answer is shown graphically alongside the correct one — immediately clear, no confusion. And with a single tap, the relevant COLREGS rule is accessible from any question at any time. Master-Nav covers COLREGS Parts A to D — General, Steering & Sailing, Lights & Shapes and Sound & Light Signals — plus Annex IV Distress Signals. Over 1000 questions in multiple formats, with a dedicated Practice Section that tracks right, wrong and unanswered so you always know where to focus. COLREGS — the easy way.