About this app
Navigation Marks is a compact reference for skippers, sailors and students learning the IALA Maritime Buoyage System. Quickly identify lateral marks for Regions A and B, cardinal marks, isolated danger marks, safe water marks, special marks and new danger marks. Each entry shows the buoy shape, colour scheme, topmark and light rhythm so you can revise recognition rules before a course, exam or time on the water. Why it helps: - Covers the main IALA buoyage marks in one place - Includes day and night views where available - Explains colours, shapes, topmarks and light characteristics - Works as a practical study aid for RYA, IYT and general seamanship training - Built for quick lookup on iPhone and iPad Use Navigation Marks as a pocket study guide when preparing for boating exams, refreshing buoyage rules or checking how a mark should be identified. Questions or suggestions: support@appsforeach.com
Latest release
What’s New
- New realistic buoy illustrations for the main navigation marks - Clearer detail screens with day/night preview support - Better layout and spacing on iPad - Refined dark mode contrast, typography and touch feedback
Audience growth
Ratings growth
Baseline captured. Growth appears after the crawler observes a changed rating count.
Momentum comes from crawler snapshots for the tracked storefront. “Viral growth signal” means unusually fast recent rating gains; it is an indicator, not download data.
Price tracking
Price intelligence
First snapshot captured. The trend line starts after the next crawler price observation.
- First observed Aug 11, 2026 · 12:37 PM $1.99
Screenshots
