Built by mariners, for mariners.
The only USCG license exam prep platform built custom from the ground up — every layer engineered in-house, not stitched together on off-the-shelf course software. 40,000+ released questions, the Navigator AI tutor, and exam-identical practice tests on every device.
What we believe
Built for exam-day confidence.
Every feature helps turn study time into focused, exam-ready practice so you can walk in knowing what to expect.
Trusted sources, expert review.
Practice with publicly released exam content where available and expert-curated questions built around the standards your license requires.
At sea, or wherever you are.
Study at sea, study at home, study on the subway. Full offline support and automatic sync across every device.
Meet the Founder
Built what he wished he had.
A licensed mariner, marine engineer, and self-taught developer, Alex started Sea Trials between voyages while studying for his own USCG license exams. Eight years and 50,000+ mariners later, it’s a fully custom-built platform for the USCG exam — every layer engineered in-house, no off-the-shelf course software stitched together underneath.
Alexander Duff Hughes
Founder · Licensed Mariner
Ready to Pass Your License Exam?
Whether you’re prepping for your first try or licensing an entire fleet, Sea Trials is built for you.