MZSoft Studio
5 guides · iOS
Nav Rules guides
USCG Rules of the Road practice tests, diagrams and the full rule text — offline.
The Rules of the Road module is closed book with a 90% pass mark. A practical study plan using practice questions, diagrams, spaced repetition and exam mode.
Read guide → Zones International vs. Inland Rules of the Road: The Differences That Trip Candidates UpStudy International and Inland rules side by side and filter practice questions by zone, so you learn exactly where the two sets of rules diverge.
Read guide → Diagrams How to Learn Navigation Lights and Day Shapes Without Rote MemorisingUse 83 original vector diagrams and topic drills to learn vessel lights, day shapes and encounter situations for the Rules of the Road exam.
Read guide → Offline & sync Study Rules of the Road Offline, and Sync Progress Between iPhone and iPadNav Rules works with no signal, no account and no ads. Optional iCloud sync keeps progress in step across iPhone and iPad, off by default.
Read guide → Retake plan I Failed the Rules of the Road Exam: How to Retake It and Pass at 90%Why candidates miss the 90% line on Rules of the Road and how to find your weak topics with a heatmap, per-rule accuracy and spaced repetition.
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