# Cardinal Marks Quiz & Trainer > Cardinal Marks Quiz & Trainer (iPhone/iPad app by 7HC.) - Source: https://appshunter.io/ios/app/cardinal-marks-quiz-and-trainer/id6829035521 (this page in markdown: same URL + `.md`) - Developer: [7HC](https://appshunter.io/developer/1109005591) - Category: Education, Reference - Price: Free - Age rating: 4+ - Requires: iOS 17.0 · 0 MB - Languages: American English - Released: 2026-11-01 - Data updated: 2026-11-06 ## What is Cardinal Marks Quiz & Trainer? Cardinal marks tell you where safe water lies — to the North, East, South or West of a danger. Every deck officer, cadet, fishing skipper and leisure sailor must be able to recognise them instantly, by day and by night. This app teaches you exactly that, then proves you know it. Cardinal marks are identical worldwide in IALA Region A and Region B, so what you learn here applies on every coast. LEARN MODE Start with an overview chart showing how the four cardinal marks guard a danger. Then study each mark on its own page: • Day view — the black-and-yellow colour bands and the double-cone topmarks, drawn clearly so the pattern logic sticks (topmarks point up for North, down for South, and the East/West shapes follow the colour bands). • Night view — an animated light that flashes the real IALA rhythm in real time: – North: white VQ or Q (continuous) – East: VQ(3) 5s or Q(3) 10s – South: VQ(6) + Long Flash 10s or Q(6) + LFl 15s — the long flash stops a six being mistaken for a nine – West: VQ(9) 10s or Q(9) 15s Watch the rhythm, count the flashes, and the clock-face memory aid (3 o'clock East, 6 South, 9 West) becomes second nature. QUIZ MODE 40 multiple-choice questions in four graded parts: 1. Daytime identification — name the mark from its colours and topmark (4 questions) 2. Night identification — name the mark from its flashing light alone (4 questions) 3. Daytime scenarios — your vessel approaches a mark from North, East, South or West; decide the safe action (16 questions) 4. Night scenarios — the same situations, but all you can see is the light (16 questions) Scenario questions show the view from your own bridge together with a bird's-eye chart of your vessel and the mark, so you practise the real decision: which side do I pass? You get a full results breakdown at the end. WHO IT'S FOR • Merchant navy cadets and deck officers preparing for orals and COLREG/buoyage exams • RYA Day Skipper, Coastal Skipper and Yachtmaster candidates • Fishing crews, pilot trainees and port workers • Anyone learning the IALA Maritime Buoyage System FEATURES • Works on iPhone, iPad and Mac • Fully offline — no internet connection needed • No ads, no accounts, no data collection • Accurate IALA light rhythms, animated in real time • Written by a maritime lecturer DISCLAIMER This app is for education and training only — it must NOT be used for navigation. Always consult official IALA publications and up-to-date nautical charts. ## Is Cardinal Marks Quiz & Trainer safe? Not enough ratings yet to assess Cardinal Marks Quiz & Trainer. ## Is Cardinal Marks Quiz & Trainer legit? Cardinal Marks Quiz & Trainer appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for Cardinal Marks Quiz & Trainer is 68 out of 100 points across 7 verification signals from App Store and developer data. ## Version history (last 1 release) ### 1.0 — 2026-11-01 No release notes. ## More apps by 7HC - [iMaritime](https://appshunter.io/ios/app/imaritime/id1109005592) - [Polaris Radio](https://appshunter.io/ios/app/polaris-radio/id6749589882) - [Lateral & Special Marks Quiz](https://appshunter.io/ios/app/lateral-and-special-marks-quiz/id6829051442) All apps by 7HC: https://appshunter.io/developer/1109005591 --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-11-06.*