ColRegs rules 20 to 31 and annex II

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

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. For example, for a "green light + red light + white light" the app will identify the associated rule.

The app is free with premium content, ad free, and does not require an internet connection. It does not collect or share any user data.

Tags/key words : lights, shapes, Colregs, Colregs72, vessel, navigation lights, navigation rules, ROR
Tags: Free download COLREGs - Lights and shapes of vessels 3.7 apk app latest version for android

What's New

Correction on "Angles and distances" test.
Label correction for rule R25.c : "Sailing vessel of less than 20m in length underway (two all-round lights in a vertical line)" now reads "Sailing vessel underway (two all-round lights in a vertical line)".
Night mode now included, as requested by many users. Available for Premium users.
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Latest Version

Version3.7 (37)
Updated2019-08-15 (4 months ago)
Installs 100,000+

Old Versions

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