HelmChart - COLREGs
Right of way, decoded.
About
Master maritime collision regulations with interactive study cards, scenario drills, and progress tracking. This app makes learning complex rules intuitive and helps identify areas needing revision. It's designed for anyone who stands a watch at sea.
What's New in HelmChart
1.1
September 26, 2026
What's new in this version: • All 38 COLREGs rules now covered — including Rules 1–4 (application, responsibility, definitions) and Parts A, B, D and E. • Full official wording for every rule — tap any rule card to read the complete text below the plain-language summary. • Rule wording checked and corrected against the official text, including Rules 3, 10, 27, 34, 37 and 38. • New final test: 40 multiple-choice questions covering every rule, fresh questions on every attempt, 95% pass mark. • Improved lights and shapes reference and glossary.
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FAQ
What is HelmChart?
HelmChart is a study aid designed to help users learn and master the International Regulations for Preventing Collisions at Sea (COLREGs). It uses interactive cards, drills, and tests to make the rules easier to understand and remember.
Who is HelmChart for?
This app is ideal for deck cadets, officers studying for exams, yachtmaster and RYA candidates, commercial skippers, and anyone who operates a vessel and wants to have a strong understanding of collision avoidance rules.
How does HelmChart help me learn the rules?
It breaks down each rule into digestible cards, provides visual aids for lights and shapes, and offers scenario drills that simulate real-life encounters. Progress tracking highlights which rules you need to focus on for revision.
Does HelmChart have ads?
No, HelmChart does not contain advertisements. The app is purchased once for full access to all its features.
What devices does HelmChart support?
HelmChart is available for iPhone, iPad, and iPod devices, making it accessible for study on the go.
How often is HelmChart updated?
The app was last updated on September 26, 2026, indicating ongoing support and potential for future improvements or content additions.
Can I use HelmChart offline?
Yes, HelmChart works completely offline. There is no need for an internet connection to study the rules, practice drills, or take tests.
What is the price of HelmChart?
HelmChart is available for a one-time purchase of $2.99. This single payment unlocks all features without any subscriptions or additional in-app purchases.