Seabook+ vs Captain Mike's OUPV Prep

Seabook is an information and knowledge source for marine professionals, sailors as well as sea enthusiasts. Seabook Master contains comprehensive and detailed information on the profession. Seabook fits to use at sea with offline accessibility and best user interface. The tools help navigational and technical computations and conversations at ease.

Captain Mike's OUPV Prep is the most thorough Rules of the Road study app for anyone preparing for the USCG OUPV (six-pack) Captain's License or any USCG deck-license exam. FOCUSED ON RULES OF THE ROAD This app covers the Rules of the Road portion of the USCG exam in depth — Inland and International (COLREGS). It does not cover Deck General, Navigation General, or Chart Plotting. Rules of the Road is the section most candidates fail first, and the only USCG section that requires a 90% score to pass. WHY OUPV PREP STANDS OUT • 2,282 questions across all 11 Rules of the Road categories — the deepest Rules-only bank on the App Store • Adaptive learning that focuses your time on the questions you miss • Spaced-repetition Smart Review based on the proven SM-2 algorithm — the same approach used by leading flashcard apps • Realistic timed practice exams (25, 50, or 100 questions) that mirror the USCG exam format with the 90% pass threshold • Visual quick-reference guides for navigation lights, sound signals, day shapes, vessel hierarchy, and distress signals CATEGORIES COVERED • Navigation Lights • Steering & Sailing Rules • Sound Signals • General Rules • Vessel Hierarchy • Inland vs. International Differences • Day Shapes • Restricted Visibility • Risk of Collision • Safe Speed • Distress Signals BUILT FOR THE WAY YOU STUDY • Practice by category for focused learning • Bookmark tough questions to revisit • Track per-category accuracy and overall progress • Daily streak tracking to keep you accountable • Detailed explanations for every answer OFFLINE FRIENDLY Everything works offline — study anywhere, no signal needed. ABOUT No subscriptions. No ads. No in-app purchases. Pay once, study at your own pace until you pass. This app is an independent study aid and is not affiliated with or endorsed by the U.S. Coast Guard. Passing the USCG exam requires study and practice, and is the sole responsibility of the test-taker.