Archived App (Last seen on 6 Sep 2025)
This is an archived listing of the app previously available on the App Store.Although the app is no longer distributed by Apple, you can still view its description, screenshots, version history, ratings, and metadata for reference.
About
Learn Colregs lights and shapes (COLREGS partC) by testing yourself. All the light arrangements and shapes from the COLREGS are included. Questions are presented from any point of view including many combinations.
The answer comes with the text and number of the applicable rule in COLREGS. For questions regarding lights a view in perspective showing the area visibility of each light.
To reduce app's size, all configurations are generated from a light 3D model.
This app is free, Ad supported.
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What's New in Colregs
1.2
June 19, 2017
This app has been updated by Apple to display the Apple Watch app icon. Some bug fixes thanks to reports from Robert L. and Hamzah R.
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