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Rule Master
Rule Master is a navigation-rules study app with question filters, progress views and exam exports.
Choose it to practice selected COLREG or US Navigation Rules topics before training or an exam.
Offline quizzes and PDF exams support both individual study and instructor preparation.
Keep in mind: Use current Coast Guard materials to verify requirements; this is a study aid rather than official navigation authority.
Inside the app
Official product images
What you can do
- Filter question sets and track progress
- Review the included handbook offline
- Generate printable practice exams
Good for
- Mariners and instructors who need repeatable practice material.
Consider alternatives for
- Anyone seeking formal certification or a source for live navigation decisions.
Limitations & considerations
- Captured minimum: iOS 16.0.
- Use current Coast Guard materials to verify requirements; this is a study aid rather than official navigation authority.
Privacy & permissions
Quiz progress is tracked in the app, and exams can be shared as PDFs.
Sources & review notes Updated Nov 11, 2026
Reviewed by iApp4Me Editorial Team. Recommendations use the linked documentation and attributed accounts; device observations are identified separately.
- US App Store developer description
Complete description, download price and compatibility metadata captured 2026-11-02.
- US Coast Guard navigation rules handbook
Official reference for checking current source material, distinct from the quiz app.
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