# Sailor's Deck: COLREGS — Nav Lights & Day Shapes Cards > Offline flashcard app for learning navigation lights and day shapes for skipper exams. (iPhone/iPad app by Vladimir Arefev.) - Source: https://appshunter.io/ios/app/sailors-deck-colregs/id6761303264 (this page in markdown: same URL + `.md`) - Developer: [Vladimir Arefev](https://appshunter.io/developer/1888773460) - Category: Education - Price: Free (on sale, was $1.99) - Rating: 5.00/5 from 1 App Store ratings · 1 written reviews indexed - Age rating: 4+ - Requires: iOS 15.1 · 23 MB - Languages: American English, Russian, European Spanish - Released: 2026-03-30 - Data updated: 2026-08-14 - Monetization: paid - User reviews in markdown: https://appshunter.io/ios/app/sailors-deck-colregs/id6761303264/reviews.md ## What is Sailor's Deck? Navigation lights and day shapes is the hardest topic on every skipper exam. Minimum 50 configurations to recognise, from any bearing, under time pressure. Most sailors try to cram it from a textbook the night before. It doesn't work. Sailor's Deck is built specifically for this. Flashcards with spaced repetition — the study method proven to build lasting visual memory — sequenced across four layers from basic light identification through to full composite scenarios. The app tracks what you know, resurfaces what you don't, and keeps drilling the configurations you keep getting wrong until they stick. HOW IT WORKS Each session presents set of cards drawn from your personal review queue. Answer correctly and the card moves to a longer review interval. Answer wrong and it comes back sooner. Get a category badly wrong and the relevant COLREGS rule is shown on the spot. The four-layer progression matches the way your exam actually tests you: — Layer 1: Base lights — masthead, sidelights, sternlight — Layer 2: Status lights — what the vessel is doing — Layer 3: Day shapes — cone, ball, cylinder, diamond — Layer 4: Composite scenarios — full patterns from specific bearings Confusion pairs are built in. Miss a RAM card and the NUC card is queued immediately behind it. Miss a trawling vessel and the purse-seine card follows. The pairs most likely to lose you marks on the exam are pre-wired into the system. 100+ CARDS. ALMOST EVERY CONFIGURATION. Power-driven vessels, sailing vessels, vessels not under command, restricted in ability to manoeuvre, constrained by draught, pilot vessels, mine clearance, dredgers, air-cushion vessels, fishing vessels trawling and not trawling, vessels at anchor, towing and pushing — plus all COLREGS day shapes. Every card reviewed by a qualified sailing instructor. WORKS FOR YOUR ASSOCIATION Select your certification on first launch and the app uses your association's terminology throughout: — RYA Day Skipper / Coastal Skipper / Yachtmaster — IYT Bareboat / Coastal / Master of Yachts — ISSA Inshore / Offshore — ASA 104 / 106 One card library. Your language. NO ACCOUNT. NO INTERNET. NO NONSENSE. Everything runs offline. Progress is saved locally. No login, no subscription, no ads. Free — permanently, with no card limit and no time limit on the entry skipper deck. DAILY STREAK + PROGRESS TRACKING A daily streak keeps you coming back in the weeks before your exam. Per-category accuracy shows exactly where your weak spots are. Session summaries flag the COLREGS rules you need to read. Study on the boat. Study on the bus. Five minutes before bed. The exam is closer than you think. ## Key features - Spaced repetition learning - Four-layer progression of study - Confusion pair training - Offline functionality - Progress tracking and session summaries - Association-specific terminology - Daily streak motivator ## Recent user reviews (1 of 1) All indexed reviews: https://appshunter.io/ios/app/sailors-deck-colregs/id6761303264/reviews.md ### 5/5 — I like the game dynamic *2026-06-24* The card system helps remember more effectively, and you get addicted to getting answers right. Sooo much better than static books and PDFs **Developer response:** Thank you for your feedback! I hope you enjoying the app and good luck with your skipper's exam! ## Frequently asked questions about Sailor's Deck ### What is Sailor's Deck: COLREGS? Sailor's Deck: COLREGS is an offline flashcard application designed to help users master navigation lights and day shapes for skipper certification exams. It employs a spaced repetition system to enhance memory retention and tracks user progress to focus on weak areas. ### How does Sailor's Deck: COLREGS help me study? The app presents flashcards in four progressive layers, from basic light identification to complex composite scenarios. It uses spaced repetition, resurfacing cards you get wrong more frequently until you master them, and provides rule references when needed. ### Does Sailor's Deck: COLREGS work offline? Yes, Sailor's Deck: COLREGS is designed to work entirely offline. All progress is saved locally, and there is no requirement for an internet connection to use the app, making it convenient for study anywhere. ### What certifications does Sailor's Deck: COLREGS support? Sailor's Deck: COLREGS supports terminology for various associations, including RYA (Day Skipper, Coastal Skipper, Yachtmaster), IYT (Bareboat, Coastal, Master of Yachts), ISSA (Inshore, Offshore), and ASA (104, 106). ### How much does Sailor's Deck: COLREGS cost? Sailor's Deck: COLREGS is a paid application priced at $1.99. It offers permanent access with no card limits or time restrictions on the entry skipper deck, and it contains no advertisements or subscriptions. ### Does Sailor's Deck: COLREGS have ads? No, Sailor's Deck: COLREGS is completely ad-free. The app is designed for focused study without interruptions from advertisements, and it does not require any in-app purchases or subscriptions. ### How often is Sailor's Deck: COLREGS updated? The latest version of Sailor's Deck: COLREGS is 1.2, and it was last updated on July 3, 2026. Updates typically focus on refining the learning experience and ensuring compatibility with the latest operating systems. ### What devices are supported by Sailor's Deck: COLREGS? Sailor's Deck: COLREGS is supported on iPhone and iPod devices. The app is rated for ages 4 and up, making it suitable for a wide range of users. ## Version history (last 5 releases) ### 1.4 — 2026-08-11 What's new: - Settings apply instantly. Pick your association and cards-per-session and you're ready. - Send feedback right from Settings. Tell us what's working and what isn't - we read every message. - Optional tip jar on Settings screen. Sailor's Deck is free and ad-free, built by one developer. If it's helped your prep, you can now leave a small tip to keep it sailing. Polish and refinements across the Settings screen. ### 1.3 — 2026-07-22 Sailor's Deck stays free — every card, every feature, no ads. What's new: • A tip jar. If the app has helped your prep, you can now leave a one-time tip to support development. It's completely optional and unlocks nothing — the full deck is free and always will be. • A quicker way to reach us. If something isn't clicking, you can now tell us what's tripping you up in a couple of taps. We read every message, and it shapes what we fix next. Fair winds. ### 1.2 — 2026-07-03 - UX/UI improvements: refreshed home screen, clearer progress, and more encouraging session summaries. - Card & rule fixes: corrected answers on several cards, plus COLREGS rules now show when you need them. - Rate the app: you can now rate Sailor's Deck right from the app. Fair winds! ### 1.1.1 — 2026-04-12 App Store page now available in Russian and Spanish. No changes to app content or functionality. ### 1.1 — 2026-04-11 Sailor's Deck now supports three languages: English, Spanish, and Russian. The app language follows your device setting automatically. All interface text, question prompts, answer options, and rule summaries are fully translated. Card illustrations are language-agnostic and unchanged. To switch language: open the app Settings and select your preferred language. ## Related topics [sailor peice](https://appshunter.io/ios/topics/sailor-peice) · [sailor virgin](https://appshunter.io/ios/topics/sailor-virgin) --- *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 2026-08-14.*