# Colregs: lights and shapes HD

> Colregs: lights and shapes HD (iPhone/iPad app by Pomacanthus.)

- Source: https://appshunter.io/ios/app/colregs-lights-and-shapes-hd/id981286672 (this page in markdown: same URL + `.md`)
- Developer: [Pomacanthus](https://appshunter.io/developer/661180284)
- Category: Navigation, Sports
- Price: Free
- Age rating: 4+
- Requires: iOS 8.0 · 14 MB
- Languages: American English, French (France), European Spanish
- Released: 2015-04-23
- Data updated: 2026-05-19
- User reviews in markdown: https://appshunter.io/ios/app/colregs-lights-and-shapes-hd/id981286672/reviews.md

## What is Colregs?

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.


## Version history (last 3 releases)

### 1.2 — 2017-06-19

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.

### 1.1 — 2017-06-12

bugfixes

### 1 — 2015-04-21

No release notes.

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## More apps by Pomacanthus

- [Anchor! drag alarm](https://appshunter.io/ios/app/anchor-drag-alarm/id661180281)
- [Colregs: lights and shapes](https://appshunter.io/ios/app/colregs-lights-and-shapes/id981283662)

All apps by Pomacanthus: https://appshunter.io/developer/661180284

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-05-19.*