The Bible for every
Engineering Officer
The complete EOOW and ETO exam companion and engine-room ready reference guide. AI oral examiner, 1,200+ flashcards, and full module coverage — choose EOOW or ETO at signup. Works offline.
Android coming soon Free to download. Premium unlocks every module.
Exam prep. Engine-room reference.
From written exam preparation to AI oral practice — and the quick reference you'll reach for in the engine room. One app covers both the EOOW and ETO pathways.
Part A Exam Simulator
Replicate real exam conditions with timed practice covering 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 before exam day.
AI Oral Examiner
Practice your engineering 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 tailored to engineering scenarios.
Lessons & Glossary
Structured lessons with animated diagrams, exam tips, and knowledge checks for all engineering modules. Each module includes a searchable glossary so every term is one tap away — no internet needed.
Spaced Repetition
1,200+ 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 to maximise retention before your exam.
Quick Reference
Instant-access reference topics: alarm and shutdown parameters, machinery systems, MARPOL discharge limits, emergency procedures, and more. Not buried in lessons — just the data you need in the engine room or before an exam.
EOOW & ETO Pathways
Choose your role at signup and get content mapped to your certificate pathway. EOOW content focuses on engineering watch duties and machinery management (STCW A-III/1). ETO content covers electrical systems, automation, and control (STCW A-III/6).
Progress Tracking
XP, levels, streaks, and a detailed dashboard showing your per-module mastery. Know exactly where you stand before exam day.
12 modules. The full syllabus.
Mapped to the MCA EOOW (STCW A-III/1) and ETO (STCW A-III/6) engineering syllabus
See it in action
Built for the way you actually study — between watches, in your cabin, before your oral.
Exam conditions. Five question types.
Timed Part A simulator — just like the real thing
AI examiner feedback on your answers.
Structured grading with verdict, score & commentary
1,200+ cards. Spaced repetition.
SM-2 algorithm learns what you know
Engine-room reference. Offline.
MARPOL limits, alarms, machinery data & more
12 modules. The full syllabus.
Every EOOW & ETO topic, structured for exams
Expert content for every topic.
Exam-standard questions with detailed explanations
Every question type.
MCQ, true/false, matching, fill-blank & drag-drop
EOOW and ETO pathways.
Choose your certificate at signup
Three steps to exam ready
Download
Available on iOS, with Android on the way. Create an account, choose EOOW or ETO, and start studying immediately.
Study
Flashcards, lessons, mock exams, and AI oral practice. The app adapts to what you need to review.
Pass
Walk into your written and oral exams with confidence. You've seen it all before.
Simple pricing
Start free. Upgrade when you're ready for the full experience.
Free
forever
- First module (lessons & flashcards)
- Quick reference preview
- Progress tracking
- All engineering modules
- Part A exam simulator
- AI oral examiner
Premium
billed monthly
- Everything in Free
- All 12 modules & 1,200+ flashcards
- Full quick reference library
- Part A exam simulator
- AI oral examiner
- Spaced repetition practice
or £39.99/year (save 33%)
Final price set by App Store / Google Play in your region — typical equivalent shown.
Frequently asked questions
What is The EOOW & ETO Bible?
The EOOW & ETO Bible is a mobile app built for engineering officer candidates preparing for their MCA certificates. It covers marine engineering systems, electrical and automation topics, safety management, and emergency procedures — with an AI oral examiner, 1,200+ spaced repetition flashcards, and a full exam simulator. Choose your role (EOOW or ETO) at signup and everything works offline.
What's the difference between EOOW and ETO content?
EOOW (Engineer Officer of the Watch) content focuses on marine engineering watch duties, propulsion and auxiliary machinery, STCW A-III/1 requirements, and engineering emergency procedures. ETO (Electro-Technical Officer) content covers shipboard electrical systems, automation and control, STCW A-III/6, and electro-technical safety. Choose your pathway at signup and the app tailors content accordingly.
What is the AI oral examiner?
The AI oral examiner helps you prepare for your engineering 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 exam simulator all work completely offline — essential for engineers studying at sea. The AI oral examiner requires a network connection as it uses cloud-based AI processing.
Is this affiliated with the MCA?
No. The EOOW & ETO 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 EOOW & ETO Bible is available now on iOS (iPhone, iOS 15+), and the Android version (Android 10+) is in review and coming soon to Google Play. You can download it for free from the App Store today.
Ready to start studying?
Download The EOOW & ETO Bible and start preparing for your engineering certificate today.
Android coming soon