The only exam prep built by a working 100-Ton captain. Unlimited AI-generated practice questions that adapt to your weak areas — for both OUPV and 100-Ton Near Coastal.
↓ Free COLREGS Quick Reference — no account neededPurpose-built for the USCG exam. Not a generic quiz app — a professional maritime study system.
Every answer explained by a real 100-Ton captain, not a software developer. You'll understand the why, not just the what.
Never run out of practice material. Our AI generates fresh questions on demand, forever — tuned to your weak areas.
The app finds your weak spots and drills them until you're ready. Track every topic, every session, every improvement.
One subscription unlocks prep for both license levels.
Select the areas where you need work, or let the AI find your weak spots automatically.
Our AI generates fresh questions tailored to your license type and difficulty level — forever.
Take a full timed simulation when you're ready. See your score, review every wrong answer, and crush the real exam.
Pass your exam or get your money back. No questions asked.
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Pay once, pass forever
All paid plans include a full pass guarantee. If you study consistently and don't pass, we'll refund you.
Running a maritime school or captain training program?
We offer bulk licensing with instructor dashboards and cohort tracking.
“Passed on my first attempt. The AI questions felt just like the real exam — I was well prepared for everything the Coast Guard threw at me.”
“The explanations are what make this different. A real captain wrote them. I could tell. They teach you how to actually think about the rules, not just memorize.”
“I studied with three different apps. This one was the only one that felt purpose-built for the USCG exam. The progress tracking showed me exactly where I needed to focus.”
I'm a licensed 100-Ton Near Coastal captain and elementary school teacher. I built The Chartroom because every other study resource felt generic — made by people who'd never stood a watch. Every question in this app is written the way I wish I'd been taught.
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