USCG Third Mate Unlimited
Pass your license exam with focused, mariner-grade prep.
MARINERX LICENSE is purpose-built for deck officers. Adaptive question banks, spaced repetition, and timed exam simulation — engineered to fit between watches.
Built for the Third Mate Unlimited exam. Additional licenses in future phases.
Designed by people who’ve stood the watch.
Direct, modern, and respectful of your time.
Built for the eight modules
From Rules of the Road to Celestial Navigation — structured around the exam, not generic test prep.
Readiness, not just hours
A single score tells you where you stand and what to study next.
Practice that mirrors the test
Timed exam simulations and review under realistic conditions.
AI tutor on watch
Ask follow-up questions on any topic, get plain-spoken explanations.
Start your prep today.
Create an account in under a minute. No card required for the foundation phase.