COLREG 72: safety at sea
Navigation Rules & Exam Prep
$3.99
Also Included In
Revamped theory with font & color themes, reading progress tracking, and smarter quiz navigation. Master COLREGS for your exam!
COLREG 72 is a complete study and reference app for the International Regulations for Preventing Collisions at Sea (COLREGs). Built for maritime students, merchant navy officers, yacht captains, and anyone preparing for a maritime exam.
WHAT IS INCLUDED
- Full text of all 72 COLREG rules (Annexes I through IV)
- Theory study with illustrations
- Navigation lights identification quizzes
- Rule-based tests with answer explanations
- Cross-references between rules and theory — open in popup overlays so you never lose your place
HOW IT WORKS
Theory and rules are linked throughout the app. When you answer a quiz question incorrectly or open a hint, a direct link appears to the exact theory section that covers the topic. Review the rule, then return to the quiz.
The app tracks which theory sections you have read, so you always know where you left off and what still needs attention.
Reading is fully customisable: choose from multiple font types, adjust the font size, and switch between three colour themes — light, sepia, and dark — for comfortable study in any lighting condition.
WHO IT IS FOR
- Maritime students at nautical colleges and academies
- Merchant navy officers preparing for OOW, Chief Mate, or Master exams
- Yacht skippers and RYA / ASA candidates
- Coastal and offshore sailors who need a reliable collision avoidance reference
- Anyone sitting a maritime authority exam (MCA, USCG, AMSA, Transport Canada, MNI)
WHY COLREG 72
International collision avoidance rules are the foundation of safe navigation. Whether you are studying for the first time or refreshing knowledge before an exam, this app gives you the full text, visual aids, and practice tests to build real confidence.
One-time purchase. No subscription. No ads. Study offline, anytime.
Download COLREG 72 and arrive at your exam prepared.
Theory Section Revamped
All theory illustrations have been replaced with updated images. Rule references now open in a popup overlay, keeping you in context while you read.
Reading Customization
Choose your preferred font type, adjust font size, and switch between 3 color themes (light, sepia, dark) for comfortable reading in any condition.
Theory Progress Tracking
The app now tracks which theory sections you have read, so you always know where you left off and what is still ahead.
Quiz Improvements
Multiple stability and navigation fixes. When you answer incorrectly or open a hint, a direct link appears to the relevant theory section so you can review and continue.
The developer, Smirnov Yury, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Smirnov Yury
- Size
- 105.7 MB
- Category
- Education
- Compatibility
Requires iOS 15.0 or later.
- iPhone
Requires iOS 15.0 or later. - iPad
Requires iPadOS 15.0 or later. - iPod touch
Requires iOS 15.0 or later.
- iPhone
- Languages
English and 3 more
- English, French, Russian, Spanish
- Age Rating
4+
- 4+
- Copyright
- © Smirnov Yury
