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USCG OUPV Six Pack + Master 100 GT Exam Prep

The only exam prep app built exclusively for the Six Pack.

Built for the Six Pack — the license that puts you in the captain’s chair on commercial passenger vessels up to 6 passengers.

Built for one exam: the OUPV Six Pack. Not a catch-all tool with the Six Pack buried in a menu. Not a subscription that keeps charging after you pass. Verified AI explanations that teach you the rules — not just quiz you on them.

Try 10 Free Questions

Works on any device — phone, tablet, desktop.

No credit card needed — 10 real questions, free.

2,225
Questions
8
Total Sections
1
Focused App
The App

Four study modes. One mission: get you through your exam.

📖 Study Mode
Learn it right the first time.
Work through every question by topic at your own pace. A Memory Hook and full explanation drops after every answer so you actually retain it.
🎯 Practice Mode
Attack your weak spots until they're gone.
Filter to exactly what's tripping you up. Pick your topic, set your question count, drill until it's locked in. No fluff, no distraction.
⏱ Sim Exam
Make test day feel like Tuesday.
Full-length, timed, no hints. The real exam format repeated until the pressure is gone and the answers are automatic.
⚓ Master Prep
Already building toward your Master 100 GT? It's built in.
The Six Pack is just the start. Master 100 GT prep is already built inside. Same verified question bank, same AI explanations, ready when you are.
Demo

See it in action.

Watch how the app works. 35 seconds.

Why This Exists

Every other app buries the Six Pack in a menu.

Other maritime study tools cover Deck, Engine, Radio, and 50 other endorsements. The Six Pack is one tab buried in a menu built for someone else's exam.

Crack the Six Pack covers one exam. Yours.

Every question, every topic, every rule, mapped specifically to what the USCG OUPV exam actually tests. And when you're ready to go further, the Master upgrade is built right in.

2,225 questions across all eight sections — four for the OUPV Six Pack (Rules of the Road, Navigation General, Deck General & Safety, Chart Plotting) and four for the Master 100 GT upgrade (Deck General, Deck Safety, Navigation General Near Coastal, and Chart Plotting). The full library, one app, one price.

AI Accuracy

AI explanations that are actually accurate.

Other apps use AI to generate explanations and ship them. We audit ours.

Every AI Deep Explain is verified against the actual COLREGS and Inland Rules. So when you're studying Rule 26 at midnight on the water, you're getting the right answer, not a plausible-sounding wrong one.

Other apps have been publicly called out by users for AI explanations that are just wrong. In a high-stakes exam context, that's not a minor issue. It's the whole product.

Ours are checked. Every one.

Try It Now

Ten questions. Pick your section. See for yourself.

Real questions. Real memory tips. Real AI explanations. Get a feel for how it works before you buy.

Question 1 of 10 0 / 0

out of 10

Master 100 GT

Ready to go further? The Master 100 Gross Tons is next.

The Six Pack gets you on the water. The USCG Master 100 Gross Tons takes you to the next level: more passengers, larger vessels, greater range.

It's the most common upgrade path from the Six Pack, and it's already built into this app. Once you crack the Six Pack, the Master 100 GT upgrade is waiting. Same verified question bank approach, same AI explanations, built specifically for the Master exam. No new app to buy, no new login. It's already inside.

Early users get the Master upgrade at $29, forever. After the launch window closes, the add-on goes to $39.

Get the Bundle · $39 and own both Already have Six Pack access? Upgrade for $29 →
🔥 Launch Pricing · First 50 Users

One price. Own it forever.

Subscription study apps run $20–30/month and keep charging after you pass. You pay once here and you're done. Get in during the launch window and your price is locked in forever.

Product Launch Price Regular Price
Six Pack $19 $39
Master Upgrade (add-on for existing users) $29 $39
Six Pack + Master Bundle Best Value $39 $59

Lock-in rule: Buy during the launch window and your pricing is locked forever. Six Pack at $19 now means the Master upgrade is always $29 for you, even after regular pricing kicks in for everyone else.

Get Bundle · $39 (Six Pack + Master)
🛡
30-Day Money-Back Guarantee
Not satisfied for any reason — full refund, no questions asked.

No subscription.  No monthly charge.  No gotchas.

How it stacks up.

Crack the Six Pack Subscription Apps Broad USCG Apps
Price $19 one-time $20–30/month $19–25 per period
Six Pack focused ✓ Only app ✗ ✗
Master Upgrade path ✓ ✗ ✗
Verified AI explanations ✓ Audited ⚠ Users report errors ✗ None
No subscription ✓ ✗ ✗
Price locked for early users ✓ ✗ ✗
Price $19 one-time ✓
Six Pack focused Only app ✓
Master Upgrade path Built in ✓
Verified AI explanations Audited ✓
No subscription ✓
Price locked for early users ✓
Questions

Still on the fence? Here's what you need to know.

Is this built from official USCG material?+
Yes. Every question is drawn directly from the official NMC question bank, the same source the actual exam pulls from. You're studying the real material, not someone's interpretation of it.
How is this different from other maritime study apps?+
Every other app covers all USCG license types. Six Pack is one module among dozens. This app was built exclusively for the OUPV Six Pack and Master exams. Every question, every explanation, every feature exists for one purpose: getting you through your exam.
How long does it take to prepare with this app?+
Most students feel exam-ready within 2–4 weeks studying 30–45 minutes per day. The Practice Mode heatmap shows exactly where to focus so you're not wasting time on topics you've already mastered.
What makes the AI explanations different?+
We audit them. AI-generated explanations that aren't verified against actual rules are a liability in a high-stakes exam. Other apps have been publicly called out for wrong AI answers. Ours are checked against COLREGS and Inland Rules before they go live.
Does this work on my phone?+
Yes. Crack the Six Pack is a progressive web app that works on any device: phone, tablet, desktop. Study on the boat, at the dock, wherever you have a few minutes.
What if I don't pass my exam?+
If you're not satisfied within 30 days, full refund, no questions asked. If you don't pass, don't walk away. You get three attempts per exam section. The weak-spot tracker will show you exactly what to focus on before your retest.
What happens to my price after the first 50 users?+
If you buy during the launch window, your price is locked forever. Six Pack at $19 means the Master upgrade is always $29 for you, even after regular pricing kicks in for everyone else. The launch window closes when 50 total transactions are reached.
When does the Master upgrade open?+
The Master 100 Gross Tons upgrade is available now, either as part of the Six Pack + Master Bundle or as an add-on for existing Six Pack users. It's the most common upgrade path from the Six Pack, covering the additional exam content required for the USCG Master of Up to 100 Gross Tons license.

Ready to crack it?

30-day money-back guarantee. No subscription, no gotchas.