The OOW Bible

From cadet to Officer of the Watch. The complete MCA OOW Unlimited course — COLREGs, stability, radar, oral exam simulator & 1,400+ flashcards. Now available offline.

The Bible for all present & future OOWs.

The complete reference for every Officer of the Watch — from exam prep to bridge watch.

The OOW Bible covers every topic on the MCA Officer of the Watch (Unlimited) syllabus in a single app. Whether you're sitting Part A and Part B for the first time, or you're a qualified OOW refreshing your knowledge before stepping back on the bridge, this is the reference you'll reach for.

START WITH A 7-DAY FREE TRIAL Try every Premium feature free for 7 days — no charge until day 8. Cancel any time during the trial and you won't pay a thing.

PART A EXAM SIMULATOR Replicate the real My Know exam experience with all five question types: • Multiple choice • True/False • Matching • Fill in the blank • Drag and drop

15 questions. 40 minutes. No returning to previous questions — just like the real thing. Per-topic pass threshold tracking (COLREGs & Buoyage 90%, Nav Procedures 80%, Overall 70%) so you always know where you stand.

AI ORAL EXAM SIMULATOR Practice your Part B oral with an AI examiner powered by Claude (Anthropic). Two modes: • Session Mode — A full multi-turn oral examination on a scenario. The AI asks follow-up questions, challenges your answers, and rates each exchange. • Quick Assessment — Submit a free-text answer and get a structured grading report: verdict (PASS / BORDERLINE / FAIL), score, key points checklist, missed topics, and examiner commentary.

SPACED REPETITION FLASHCARDS Over 1,400 flashcards across all 10 modules, powered by the SM-2 spaced repetition algorithm. The app learns what you know and what you don't — surfacing the right cards at exactly the right time to build lasting knowledge, not just short-term memory.

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

All mapped to MIN 653 (Amendment 1, November 2024).

QUICK REFERENCE LIBRARY 10 instant-access reference topics — not buried in lesson content, just the rules and data you need: IALA buoyage · COLREGs lights & shapes · Sound signals · VHF channels · Beaufort scale · Douglas sea scale · Distress signals · IAMSAR SAR patterns · Day shapes · Light characteristics

Useful for exam candidates drilling topics. Just as useful for the OOW heading back to sea after a rotation ashore who needs a fast, reliable refresher before stepping onto the bridge.

GAMIFICATION XP, levels, streaks, and daily challenges keep you consistent through months of exam prep.

WORKS OFFLINE Everything — flashcards, lessons, quick reference, exam simulator — works completely offline. Whether you're studying at sea or on a long-haul flight.

The OOW Bible is an educational study tool and is not affiliated with, endorsed by, or produced by the Maritime and Coastguard Agency (MCA). Always verify content against current official publications.

Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/