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About Seabook Maritime

Seabook serves as a key information source for seafarers and shore-based employees to promote safer seas and cleaner waters. This easy-to-use, accessible-offline mobile app serves as a reference tool for key elements of Ship stability, Navigation, COLREG and Marine engineering, and is designed for seafarers, cadets, maritime students and master mariners alike. Seabook contains details on; 1) COLREG (International Regulations for Preventing Collisions at Sea) 2) GMDSS (Global Maritime Distress and Safety System) 3) International Code of Signals 4) Marine Engineering 5) Marine Meteorology 6) Shipboard Safety 7) Health at Sea 8) Life Saving Appliances 9) Shipmanagement and Business 10) Navigation at Sea 11) Ship Stability 12) Country Flags 13) Ropework 14) Knots 15) more and more enriched contents ...

Ratings & reviews

4.5

19 ratings

5 ★ 68% 4 ★ 21% 3 ★ 5% 2 ★ 0% 1 ★ 5%

What’s new

Version 4.0.0 · Updated April 11, 2026

Improved back-end to enable smooth user experience in both new and old devices. The top-screen/bar issues has been fixed.

App privacy

The developer, Ozgur GUNES, reported these privacy practices to Apple.

Data Not Collected

The developer does not collect any data from this app.

Alternatives to Seabook Maritime

Looking for apps like Seabook Maritime? Here are 6 similar apps on the App Store. The highest rated is Master-Nav: COLREGS IALA Tests (5.0/5), and all 6 are free to download.

Seabook Maritime vs. alternatives
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Seabook Maritime 4.5 / 5 (19 ratings) Free April 11, 2026
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Master-Nav: COLREGS IALA Tests 5.0 / 5 (1) Free Jun 15, 2026 Compare
Maritime Terms & Dictionary – Free Aug 9, 2024 Compare

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