From cadet to Officer of the Watch. The complete MCA OOW Unlimited course — COLREGs, stability, radar and a live oral exam simulator. Now steadier than ever.
**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.
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*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/
Ratings & Reviews
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This release is about reliability — the app getting out of your way when the connection doesn't cooperate.
• Clearer sign-in. If sign-in fails because you're out of signal, or because your device's clock has drifted, you now get a plain-English explanation and the fix — not a raw error code.
• Steadier purchases. A dropped connection partway through checkout or restore is now handled quietly and retried, instead of surfacing as a failure.
• Oral Simulator resilience. Losing signal mid-session no longer ends your practice abruptly.
• Referral accuracy. Rewards are now credited correctly on subscription renewals, and only once a real payment has been taken.
• Performance improvements and minor bug fixes throughout.
Version 1.3.0
The developer, Azimuth Systems Ltd, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Linked to You
The following data may be collected and linked to your identity:
Contact Info
Identifiers
Usage Data
Diagnostics
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
Contact Info
User Content
Privacy practices may vary, for example, based on the features you use or your age. Learn More
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
Seller
Azimuth Systems Ltd
Size
105.9 MB
Category
Education
Compatibility
Requires iOS 15.1 or later.
iPhone Requires iOS 15.1 or later.
iPad Requires iPadOS 15.1 or later.
iPod touch Requires iOS 15.1 or later.
Mac Requires macOS 12.0 or later and a Mac with Apple M1 chip or later.
