5.0
137 reviews
5K+
Downloads
Content rating
Everyone
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About this app

Seabook is an information and knowledge source for marine professionals, sailors as well as sea enthusiasts. Seabook Master contains comprehensive and detailed information on the profession in a comfortable language with graphics. Seabook fits to use at sea with offline accessibility and best user interface. The tools help navigational and technical computations and conversations at ease.
Updated on
Oct 23, 2022

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
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No data collected
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Ratings and reviews

5.0
129 reviews
Carl Monk
October 26, 2020
Lots of information missing especially relating to stability and FFA. LSA section is good for reference as it saves me referring to LSA code and also the colregs . The sections seem to have inconsistent levels of information and many areas have been overlooked it seems, especially regarding stability where only formulae are present with little to no explanations. The length conversion tool does not include fathoms which I found discouraging. Overall seems like the app was rushed.
60 people found this review helpful
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Ozgur Dogan GUNES
October 26, 2020
Thank you, Carl. Great feedback. Stay tuned for the next update. We are working on the stability section and more. Cheers.
Arthur D
June 13, 2023
Significant upgrade to the original great reference. Well worth the cost, whether you are a professional mariner or not. After initial review, my only real criticism is the lack of a master symbol definition summary table for the equations shown in the stability chapter. Some sub-sections have symbol definitions and others don't.
15 people found this review helpful
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Shinji Aeseki (Villainous Hero)
March 2, 2023
The App is very usefull and the contents are great. But the colregs full version got summarized half way. Then the way points for the great circle calculator are a bit innacurate. So please fix it. Thanks! Ps. I use this to double check my calculation and in class. so helpfull but also made me confused due to some errors...
17 people found this review helpful
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Ozgur Dogan GUNES
March 16, 2023
Dear Shinji Aeseki, Seabook aims to remain as a handbook to reach knowledge easily. Many thanks for the feedback! The GC calculation is based on generic indication.