The OOW Bible

Your Complete OOW Bridge Reference & Study Companion.

Whether you're a cadet preparing for your Officer of the Watch certificate of competence or a serving OOW wanting an all-in-one bridge reference tool or looking to refresh your knowledge, The OOW Bible is built for you.

Covering all 10 modules from the MIN 653 Amendment 1 (November 2024) syllabus, the app puts the entire OOW Unlimited curriculum in your pocket — structured, searchable, and ready when you are.

What's Inside:

Navigation
COLREGs & Buoyage
Radar & ARPA
Meteorology
Watchkeeping & BRM
Ship Stability
Cargo Operations
Safety & Legislation
Emergency Response
Ship Handling

Part A Exam Preparation:
Practice with realistic mock exams mirroring the online proctored My Know format. Five question types — multiple choice, true/false, matching, fill-in-the-blank, and drag-and-drop — across timed 15-question papers. Track your scores against the real pass thresholds: 90% for COLREGs, 90% for Buoyage, 80% for Navigation Procedures, and 70% overall.

Part B Oral Exam Simulator:
Prepare for your oral examination with an AI-powered speech-to-text feature with assessor that analyses and grades your answers as well as provide model examples to the realistic scenarios. Practice structuring your answers, build confidence, and identify weak areas before the real thing.

Smart Flashcards:
A spaced repetition system adapts to your progress, surfacing the cards you need most and spacing out the ones you've mastered. Study efficiently, not endlessly.

Not Just for Cadets:
Already qualified? The OOW Bible works just as well as a bridge resource and professional refresher. Quickly look up COLREGs rules, review stability principles, or brush up on emergency procedures between watches. Keep your knowledge sharp without digging through textbooks.

Key Features:
Offline-first — study at sea with no internet required
Progress tracking across every module and question type
Dark mode designed for low-light bridge environments
Bite-sized review sessions that fit around watch patterns

Free & Premium:
Start free with full access to the COLREGs module. Upgrade to Premium to unlock all 10 modules, the Part A exam simulator, the oral exam simulator, and unlimited flashcard decks.

Built by mariners, for mariners.