# Colregs: lights and shapes > Maritime navigation lights and shapes quiz based on COLREGS. (iPhone/iPad app by Pomacanthus.) - Source: https://appshunter.io/ios/app/colregs-lights-and-shapes/id981283662 (this page in markdown: same URL + `.md`) - Developer: [Pomacanthus](https://appshunter.io/developer/661180284) - Category: Navigation, Sports - Price: Free - Rating: 4.20/5 from 5 App Store ratings · 5 written reviews indexed - Age rating: 4+ - Requires: iOS 8.0 · 14 MB - Languages: American English, French (France), European Spanish - Released: 2015-04-23 - Data updated: 2026-06-10 - Monetization: ad-supported - User reviews in markdown: https://appshunter.io/ios/app/colregs-lights-and-shapes/id981283662/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. ## Key features - COLREGS lights and shapes testing - All light arrangements and shapes included - Questions from any point of view - Answers with rule text and numbers - Perspective views for light visibility - 3D model for configuration generation ## Recent user reviews (5 of 5) All indexed reviews: https://appshunter.io/ios/app/colregs-lights-and-shapes/id981283662/reviews.md ### 1/5 — Errors *2024-08-25* So many errors, don’t waste your time. ### 5/5 — perfect *2022-11-07* excellent app! really helped me lock down my light identifying skills. my only complaint is that there are not more apps like this to help me train sound signals and buoy identification and other colregs necessities. also a happy anchor user! ### 3/5 — Great potential: horrible flaw *2022-03-29* I installed the app, answered many questions, left it running in the background, answered more questions the next day, left it running in the background, today, the questions advanced but not the lights image (the image was stuck for many questions until I killed the app). For those studying, this is dangerous as it leads the user confused on the answer set when the corresponding light image doesn’t match. Without the above bug occurring, the app is quite nice showing the answer Rule and text and also showing a 3d light model. ### 1/5 — Rubbish *2019-04-15, version 1.2* Half of it is wrong, do not download ### 1/5 — Rubbish *2016-04-11, version 1* No wonder why it's free. I'm going for a masters exam tomorrow just wanted to brush up on lights. Aspects are all wrong and confusing . Stick with the flash cards or pay for better! ## Frequently asked questions about Colregs ### What is Colregs: lights and shapes? Colregs: lights and shapes is a free, ad-supported application designed to help users learn and test their knowledge of maritime navigation lights and shapes as defined by COLREGS Part C. It includes all relevant light arrangements and shapes. ### Does Colregs: lights and shapes have ads? Yes, Colregs: lights and shapes is ad-supported. Advertisements are included within the application. ### What devices does Colregs: lights and shapes support? Colregs: lights and shapes is available for iPhone and iPod devices. It is not currently listed as available for Android or other platforms. ### How often is Colregs: lights and shapes updated? The latest version of Colregs: lights and shapes was released on June 19, 2017. The app has not received an update since then, indicating infrequent updates. ### What is the age rating for Colregs: lights and shapes? Colregs: lights and shapes has an age rating of 4+. This suggests it is suitable for a wide range of users, including younger individuals interested in the subject matter. ### What is the user sentiment for Colregs: lights and shapes? Colregs: lights and shapes has a positive user sentiment, with an average rating of 4.2 stars from 5 ratings. This indicates that users generally find the app helpful and well-received. ### Does Colregs: lights and shapes offer offline play? The description does not explicitly state whether Colregs: lights and shapes offers offline play. However, given its focus on testing and generated content, it is likely designed to function without a constant internet connection. ### What are the pricing details for Colregs: lights and shapes? Colregs: lights and shapes is available for free. It is supported by advertisements, but there are no in-app purchases or subscription fees required to use the application. ## 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. ## Apps similar to Colregs | App | Rating | Price | Category | | --- | --- | --- | --- | | [Navily](https://appshunter.io/ios/app/navily/id881103205) | 4.8 (766) | Free | Navigation | | [iGlide Advanced](https://appshunter.io/ios/app/iglide-advanced/id401899980) | 2.0 (2) | $99.99 | Navigation | | [where2fly paragliding](https://appshunter.io/ios/app/where2fly-paragliding/id378914940) | 4.9 (7) | Free | Navigation | | [TwoNav 5 (no updates)](https://appshunter.io/ios/app/twonav-5-no-updates/id346996240) | 3.1 (8) | $49.99 | Navigation | | [B&G: Companion App for Sailors](https://appshunter.io/ios/app/b-and-g-companion-app-for-sailors/id1477846822) | 4.0 (325) | Free | Navigation | | [Tides Planner](https://appshunter.io/ios/app/tides-planner/id317900837) | 3.8 (16) | Free | Navigation | ## More apps by Pomacanthus - [Anchor! drag alarm](https://appshunter.io/ios/app/anchor-drag-alarm/id661180281) - [Colregs: lights and shapes HD](https://appshunter.io/ios/app/colregs-lights-and-shapes-hd/id981286672) All apps by Pomacanthus: https://appshunter.io/developer/661180284 --- *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 2026-06-10.*