Navitime Marine

completely free — every quiz mode, the full mock exam, flashcards, and 8 navigation books unlocked for everyone. No subscription, no ads, no account.

Navitime is the complete study, navigation and exam-prep companion for maritime Rules of the Road (COLREGS / IRPCS) — built for deck officers, cadets, sailors, and anyone preparing for a navigation exam.

STUDY • Full COLREGS Rules 1–41 + Annexes, bilingual English/Arabic • Navigation lights, shapes, sound signals and flags with visual diagrams • Advanced Navigation library — 8 books, 57 chapters, with rich diagrams, worked examples and image zoom (Position & Charts, Celestial Navigation, The Instrumented Bridge, Handling the Ship, Maritime Regulations, Weather & Water, Blind Pilotage, and the core Navigation Handbook) • Naval Formations reference — 17 tactical formation topics • AI COLREGS tutor — ask any Rules of the Road question and get an instant explanation, with recommended quiz categories and study sections

QUIZ • Category-based quizzes across every COLREGS topic • Timed quiz mode and a full Mock Exam covering all categories (Pro) • Flashcard study mode (Pro) • Weak-areas mode — drills the questions you get wrong most • Detailed per-answer explanations, quiz history and progress tracking

NAVIGATION TOOLS • GPS Radar — live nearby vessel (AIS) and aircraft traffic on a radar display, with a combined distance-sorted traffic list • GNSS Scan Tool — satellite constellation status and interference map • Chart Plotter — dead reckoning and fix chartwork practice • VHF radio channel directory by country/port • Beaufort & Douglas sea-state scales with live marine conditions • Sun & Moon and Tide tools, with a "show the working" calculation mode • Morse code converter and unit converter

100% OFFLINE All study content, the rule book, and every quiz work with no internet connection. Progress, bookmarks, and history are saved locally on your device.

DESIGNED FOR EVERYONE • Full bilingual English/Arabic support with right-to-left layout • Dark and light theme, switchable anytime • No ads, no tracking, no account required

FREE FOR EVERYONE Every feature is fully unlocked — no subscription, no ads, no account required.

GROUP CHALLENGES Host or join a live group quiz session with friends or colleagues. (Requires internet.)

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