--- title: "COLREG — App Overview" url: https://marlvel.ai/apps/com-oleksandrkuzmychovapp category: Navigation developer: Oleksandr Kuzmychov platforms: ios, android rating: N/A (0 ratings) pricing: paid report_level: overview generated: 2026-05-04 last_verified: "2026-05-04T22:38:36.940Z" --- > **Key Insight:** COLREG serves as a specialized digital reference guide for maritime safety regulations and vessel identification. | Metric | Value | |--------|-------| | Category | Navigation | | Rating | N/A ★ (0) | | Pricing | paid | | Platforms | iOS, Android | | Latest Version (iOS) | 3.0 | | Latest Version (Android) | 2.0 | | Developer | Oleksandr Kuzmychov | ## What is COLREG? COLREG is a navigation reference tool designed to help mariners understand and apply the International Regulations for Preventing Collisions at Sea. The app provides visual and auditory guides to assist users in identifying vessel activities and communicating effectively while at sea. ## Key Features - **Ship Lights**: A guide to identifying vessels and their operational status based on specific light configurations. - **Daily Shapes**: A reference tool for interpreting maritime day shapes and their corresponding meanings. - **Sound Signals**: A library of sound signals used to facilitate communication and safety between vessels. ## Who is it for? The app is intended for professional mariners and maritime enthusiasts seeking a reference guide for collision prevention regulations. ## Links - [App Store](https://apps.apple.com/us/app/colreg/id6446209111?uo=2) - [Google Play](https://play.google.com/store/apps/details?id=com.oleksandrkuzmychov.colreg&hl=en&gl=us) - [Full Intelligence Report](https://marlvel.ai/apps/com-oleksandrkuzmychovapp) --- *This is an overview report. Sentiment analysis, competitive landscape, and SWOT analysis are available in the [full intelligence report](https://marlvel.ai/apps/com-oleksandrkuzmychovapp).* *Generated by [Marlvel.ai](https://marlvel.ai) — Independent app intelligence.*