COLREG 72: safety at sea

COLREG 72: Safety at Sea 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, it includes the full text of all 72 COLREG rules (Annexes I–IV), theory with illustrations, navigation lights quizzes, rule-based tests with explanations, and a timed mock exam mode. Cross-references between rules and theory appear as popups so you never lose your place, and the app keeps track of which theory sections you’ve read.

Reading is customizable with multiple fonts, adjustable font sizes, and three color themes (light, sepia, and dark) optimized for iPhone and iPad. The exam mode simulates the real test across all rules, provides a final score, and lists every mistake with explanations and direct links to the relevant rule. One-time purchase, offline access, no ads—download COLREG 72 and arrive at your exam prepared.