Master maritime navigation signals with interactive flashcards and quizzes. Learn day shapes, navigation marks, vessel lights, and sound signals. Features offline study, progress tracking, and a dark theme for night use.






249+ iOS apps curated and reviewed
Every iPhone needs a few good hms colregcards apps. We benchmark 249+ of them on App Store rating, freshness, and pricing, then surface the standouts so you don't have to scroll the App Store yourself.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 | Free | 1.0★ (1) | Yes | Yes | Oct 2026 | ||
| 2 | Free | 5.0★ (12) | No | No | Oct 2026 | ||
| 3 | Free | 4.8★ (5) | Yes | Yes | Oct 2026 | ||
| 4 | Free | 5.0★ (5) | No | No | Oct 2026 | ||
| 5 | Free | — | No | Yes | Oct 2026 | ||
| 6 | Free | 5.0★ (17) | No | No | Oct 2026 | ||
| 7 | Free | 3.0★ (3) | No | Yes | May 2026 | ||
| 8 | $14.99 | — | No | No | Sep 2026 |






Master maritime navigation signals with interactive flashcards and quizzes. Learn day shapes, navigation marks, vessel lights, and sound signals. Features offline study, progress tracking, and a dark theme for night use.





Master USCG Navigation Rules with a comprehensive question bank and smart study features. Track your progress, practice for exams, and study offline to navigate with confidence.




This app offers comprehensive study materials, interactive quizzes, and essential navigation tools for maritime professionals and students. It covers COLREGS, navigation techniques, and includes AI-powered tutoring for exam preparation. Enjoy offline access to all content and features.