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Comparison

CaptainsGround vs Mariner Advancement — Compared

Mariner Advancement sells USCG exam-prep study software for AB, QMED, and licensed deck and engine credentials, delivered on USB flash drives. CaptainsGround is a free, web-based, citation-backed drilling tool. The biggest practical difference is delivery: an offline USB module you install versus a browser you open anywhere.

Every answer cited & verifiedAll 4 USCG exam modulesReviewed by a former NMC exam writer

TL;DR

Mariner Advancement: per-license study software shipped on USB flash drives (AB, QMED, deck, engine, master/mate), priced per module. CaptainsGround: free to start, runs in any browser, every answer cited to a public source, updated continuously.

Side by side

Delivery

CaptainsGround

Web app — any browser, any device

Mariner Advancement

Software on a USB flash drive you install

Price

CaptainsGround

Free to start · Pass plans from $79

Mariner Advancement

Sold per-license module; pricing listed on each product page

Credential coverage

CaptainsGround

OUPV / Master + AB and QMED (Oiler, Junior Engineer, Electrician/Refrigerating)

See AB tracks

Mariner Advancement

AB & Lifeboatman, QMED ratings, and licensed deck/engine up to unlimited

Citations on every answer

CaptainsGround

Yes — 33/46 CFR, COLREGs, public engineering references

Mariner Advancement

Practice banks with answer keys

Updates

CaptainsGround

Continuous — served from the web

Mariner Advancement

Per-drive version; free upgrades to purchasers per the vendor

Works offline

CaptainsGround

No — needs a connection

Mariner Advancement

Yes — installed locally from the drive

Spaced repetition

CaptainsGround

FSRS-4 flashcards

Mariner Advancement

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Which should you pick?

Pick CaptainsGround if…

  • Delivery: Web app — any browser, any device
  • Price: Free to start · Pass plans from $79
  • Credential coverage: OUPV / Master + AB and QMED (Oiler, Junior Engineer, Electrician/Refrigerating)
  • Citations on every answer: Yes — 33/46 CFR, COLREGs, public engineering references
  • Updates: Continuous — served from the web
  • Works offline: No — needs a connection
  • Spaced repetition: FSRS-4 flashcards

Pick Mariner Advancement if…

  • Delivery: Software on a USB flash drive you install
  • Price: Sold per-license module; pricing listed on each product page
  • Credential coverage: AB & Lifeboatman, QMED ratings, and licensed deck/engine up to unlimited
  • Citations on every answer: Practice banks with answer keys
  • Updates: Per-drive version; free upgrades to purchasers per the vendor
  • Works offline: Yes — installed locally from the drive
  • Spaced repetition: —

Bottom line

If you want study software you can run offline on one computer and own outright, Mariner Advancement's USB modules do that. If you'd rather drill from any device for free, see the rule behind every answer, and let spaced repetition schedule your review, CaptainsGround is the better fit — especially for AB and QMED candidates who want citations they can check.

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CaptainsGround vs Mariner Advancement — USCG Exam Prep · CaptainsGround