Ahoy mighty sailor!

Whether on the high seas or in the harbour – do you know the light and sound signals and the right of way rules? Seaproof prepares you for tests and actual seafaring.

We have compiled three packages of different vessels, basic and advances sound signals, with all the important right of way rules and critical scenarios for Maneuvers.

Check out what you can do with this app!

Vessel lights

Learn the basic rules and sharpen your instincts, so that you quickly make the right decisions out at sea.

Sound signals

With a multitude of possible combinations, you're sure to get enough practice.

Right of way rules

Recognize objects and the direction they are moving, and quickly decide on way rules in all kinds of situations.


Exercise the correct steps for your maneuvers in the harbour and on the see

New games will follow

The lessons and examples are based on the International Regulations for Preventing Collisions at Sea (COLREG).

Check out our intro video!

We are continuously adding new features!

Stop waiting.
Get on board!

Let's Get Started!

Crew List

Meet the four sailors!





We're here to listen

Tell us your opinion

Get in touch at feedback@cribster.biz