COLREGs Lights & shapes

In-app purchases
4.5
926 reviews
100K+
Downloads
Content rating
Everyone
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About this app

The app, features a light and shapes visual search engine, a thematic rule reference, and provides revision tests as well as a 3D rendering for Colreg rules 20 to 31.

For each rule, you can change the observation point on the 3D rendering view by a touch/drag action.

The visual search engine gives you the ability to find any Colreg rule in seconds.

The app is free with premium content, ad-free, and does not require an internet connection.
Updated on
Mar 17, 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.
This app may share these data types with third parties
Location
No data collected
Learn more about how developers declare collection
Data is encrypted in transit
You can request that data be deleted
4.5
926 reviews
William Gibson
June 19, 2022
Fishing vessel engaged in hauling nets is incorrect. White over red is pilot vessel only. Two vertical white is fv hauling. (When they can be bothered using nav lights at all) Will modify on correction :)
2 people found this review helpful
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Smanga Khumalo
June 28, 2022
Perfect app if you still trying to understand college, it makes everything easier more especially with the 3D.... I'm happy
3 people found this review helpful
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A Google user
March 27, 2019
it's a bog standard lights and shapes test of the type that have been available freeware for decades - only this one has a paywall. if you want money for your app just charge a couple of quid up front otherwise physical flashcards are still a better option.
71 people found this review helpful
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What's new

New features and improvements:
3D touch control is back and has been improved.
360° autorotate control on welcome screen.

Corrections:
"Red over green" masthead lights were inverted for sailing vessels rendering.
Label updated for "two balls in vertical line" and "two diamond shapes in vertical line".