The Bible for every
Officer of the Watch
The complete OOW Unlimited exam companion and bridge-ready reference guide. Quick reference, Part A simulator, AI oral examiner, 1,400+ flashcards, and 10 full modules — all mapped to MIN 653. Works offline.
Free to download. Start a 7-day free trial of Premium.
Exam prep. Bridge reference.
From Part A preparation to Part B oral practice — and the quick reference you'll reach for on the bridge. One app covers the entire OOW Unlimited syllabus.
Part A Exam Simulator
Replicate real exam conditions. 15 questions, 40 minutes, all five question types — multiple choice, true/false, matching, fill in the blank, and drag & drop. Per-topic threshold tracking so you always know where you stand.
AI Oral Examiner
Practice your Part B oral with an AI examiner. Speak your answer using speech-to-text — just like a real oral — and get a structured grading report: verdict, score, key points checklist, missed topics, and examiner commentary.
Lessons & Glossary
Structured lessons with animated diagrams, exam tips and knowledge checks for all 10 modules. Each module includes a searchable glossary so every term is one tap away — no internet needed.
Spaced Repetition
1,400+ flashcards powered by the SM-2 algorithm. The app learns what you know and what you don't — surfacing the right cards at exactly the right time.
Quick Reference
11 instant-access reference topics: IALA buoyage, COLREGs lights & shapes, sound signals, signal flags, VHF channels, Beaufort scale, and more. Not buried in lessons — just the rules and data you need on the bridge or before an exam.
Progress Tracking
XP, levels, streaks, and a detailed dashboard showing your per-module mastery. Know exactly where you stand before exam day.
Works Offline
Flashcards, lessons, quick reference, exam simulator — everything works without a connection. Study at sea or on a long-haul flight.
10 modules. The full syllabus.
All mapped to MIN 653 (Amendment 1, November 2024) / STCW A-II/1
See it in action
Built for the way you actually study — on the go, between watches, before your oral.
Exam conditions. Five question types.
Timed Part A simulator — just like the real thing
AI examiner feedback on your answers.
Detailed grading with verdict, score & commentary
1,400+ cards. Spaced repetition.
SM-2 algorithm learns what you know
Bridge-ready reference. Offline.
Signal flags, COLREGs, buoyage & more
Lessons. Cards. Glossary.
Every module structured for exam success
Expert content for every topic.
Exam tips, key points and knowledge checks throughout
Visual explanations. Animated diagrams.
Radar, stability and navigation topics illustrated
Every term defined.
Searchable module glossaries — always offline
Three steps to exam ready
Download
Available on iOS and Android. Create an account in seconds and start your 7-day free trial.
Study
Flashcards, lessons, mock exams, and AI oral practice. The app adapts to what you need to review.
Pass
Walk into your Part A and Part B exams with confidence. You've seen it all before.
Simple pricing
Start with a 7-day free trial. No charge until day 8.
Free
forever
- COLREGs module (lessons & flashcards)
- COLREGs quick reference
- Progress tracking
- 9 additional modules
- Part A exam simulator
- AI oral examiner
Premium
after 7-day free trial
- Everything in Free
- All 10 modules & 1,400+ flashcards
- Full quick reference library
- Part A exam simulator
- AI oral examiner
- Spaced repetition practice
or £39.99/year (save 33%) — also with 7-day free trial
Final price set by App Store / Google Play in your region — typical equivalent shown.
Frequently asked questions
What is The OOW Bible?
The OOW Bible is a mobile app built for both exam candidates and qualified Officers of the Watch. For cadets, it covers the full MCA OOW Unlimited syllabus with a Part A exam simulator, AI-powered oral examiner, and 1,400+ spaced repetition flashcards. For established OOWs, it's a bridge-ready quick reference — 11 instant-access topics including COLREGs lights & shapes, IALA buoyage, signal flags, sound signals, and VHF channels. Everything works offline.
Does it cover all 10 MCA modules?
Yes. The app covers all 10 modules mapped to MIN 653 (Amendment 1, November 2024): Navigation, COLREGs & Buoyage, Radar & ARPA, Meteorology, Watchkeeping & BRM, Ship Stability, Cargo Operations, Safety & Legislation, Emergency Response, and Ship Handling.
How does the Part A exam simulator work?
The simulator replicates real exam conditions: 15 questions, 40 minutes, no returning to previous questions. It supports all five question types used in the My Know platform — multiple choice, true/false, matching, fill in the blank, and drag and drop — with per-topic pass threshold tracking (COLREGs 90%, Buoyage 90%, Navigation Procedures 80%, Overall 70%).
What is the AI oral examiner?
The AI oral examiner helps you prepare for your Part B oral examination. Speak your answer using speech-to-text — just like a real oral — and receive a structured grading report: verdict (PASS / BORDERLINE / FAIL), score, key points checklist, missed topics, and examiner commentary. It's the closest thing to practising with a real examiner.
Does the app work offline?
Yes. Flashcards, lessons, quick reference, and the Part A exam simulator all work completely offline. The AI oral examiner requires a network connection as it uses cloud-based AI processing.
Is this affiliated with the MCA?
No. The OOW Bible is an independent educational study tool developed by Azimuth Systems Ltd. It is not affiliated with, endorsed by, or produced by the Maritime and Coastguard Agency (MCA). Always verify content against current official publications.
What platforms does it support?
The OOW Bible is available on iOS (iPhone, iOS 15+) and Android (Android 10+). You can download it for free from the App Store and Google Play.
Ready to start studying?
Download The OOW Bible and start preparing for your OOW Unlimited today.