# Rule Master — Rules of the Road Toolbox

> Advanced maritime navigation rules quiz and study tool for sailors. (iPhone/iPad app by Universal Queue LLC.)

- Source: https://appshunter.io/ios/app/rule-master/id1617543595 (this page in markdown: same URL + `.md`)
- Developer: [Universal Queue LLC](https://appshunter.io/developer/1577058225)
- Category: Navigation, Education
- Price: $9.99 (on sale, was $24.99)
- Rating: 4.80/5 from 280 App Store ratings · 13 written reviews indexed
- Age rating: 4+
- Requires: iOS 16.0 · 13 MB
- Languages: American English
- Released: 2022-04-04
- Data updated: 2026-08-31
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/rule-master/id1617543595/reviews.md

## What is Rule Master?

The most advanced, modern, and competitive Rules of the Road quiz application on the iOS App Store!

This Navigation Rules quiz application is a must-have for new and experienced sailors, alike. This complete Rules of the Road toolbox is the most effective way to build and maintain proficiency, so you can spend less time preparing for your next USCG Navigation Rules examination. Track your progress like never before, and use our advanced question filters and rule proficiency statistics for efficient, targeted studying.

Are you an instructor? Generate and print beautiful, custom-filtered COLREG examinations in seconds with our advanced exam PDF generation algorithm.

Are you an experienced mariner? There is always more to learn! Rule Master provides 100+ hand-selected, fill-in-the-blank questions optimized to refine your mastery of the Rules of the Road. Mastery of these verbatim COLREG excerpts allows for intelligent verbal communication of the rules — especially useful for students undergoing rigorous training at the USN Mariner Skills Training Command.

- 10,000+ question-answer combinations
- Advanced, custom question filters for targeted studying
- 100+ hand-selected, fill-in-the-blank questions for experienced Mariners
- Full offline capability
- Unlimited exam PDF generation and printing
- Full, digital Navigation Rules handbook for quick reference
- In-depth progress tracking and statistics

This COLREG application's abbreviated question bank -- tediously hand-scrubbed and optimized by an experienced USN Surface Warfare Officer -- is coupled with a custom algorithm that generates 10,000+ unique question-answer combinations specifically designed to more effectively teach and examine student knowledge while simultaneously exposing students to the confusing vernacular commonly found in the infamous USCG Rules of the Road question bank.

## Key features

- 10,000+ question-answer combinations
- Custom question filters
- Fill-in-the-blank questions
- Offline capability
- Exam PDF generation
- Digital Navigation Rules handbook
- Progress tracking and statistics

## Chart rankings

- #22 in Top Paid · Navigation (US App Store)

## Recent user reviews (10 of 13)

All indexed reviews: https://appshunter.io/ios/app/rule-master/id1617543595/reviews.md

### 3/5 — Questions disappear off the bottom of the screen

*2024-06-09*

Many of the questions with longer answers disappear off the bottom off the screen. The 4th answer may not show.

### 5/5 — Ready for the test! 🙌🏼

*2023-09-23, version 4.1*

I love the app so much! Very user friendly. 
A lot of great information to study and review! This was so helpful and really prepared me to have the understanding I needed to feel confident for the exam!

### 5/5 — Suggestion

*2023-03-28, version 4.0*

Great app. Used it to study for my Yachtmaster exam. 

It’d be very helpful if the relevant COLREG rule was linked when answering a question correctly as well as when incorrect.

### 5/5 — Beautifully designed app

*2023-03-16, version 4.0*

I love the layout of the app and how easy it is to navigate between different topics. Very functional, I wish this app could be for all kinds of subjects to study for like chemistry or history. Would love to see this app expand its subjects.

### 4/5 — Great app , one complaint

*2023-01-22, version 4.0*

The diagrams are too small , can’t see which boat is boat “A” or boat “B”, boat 1 or boat 2.

### 3/5 — Good information but UX needs some refinement

*2022-11-30, version 4.0*

Having a way to quiz myself is handy but things like very small visual aids to questions makes things difficult. For instance a diagram of two vessels in a crossing situation may be presented but it is too small for quick identification. Some questions have a character limit over the margin so only half of the question is visible.

### 1/5 — Doesn’t work

*2022-11-28*

The app doesn’t work on my phone… quiz and verbatim don’t display in a usable manner

### 3/5 — Needs more

*2022-11-22, version 4.0*

I definitely wouldn’t rely on this app as your sole study if you’re trying to get your RFPNW endorsement, some of the answers aren’t 100% accurate to the questions. But you get what you pay for and the person who made this probably has never sailed or hasn’t in a long time.

### 5/5 — Great app, slight issues

*2022-10-07, version 3.1*

Hello, I’ve been very happy with the app, but sometimes it feels as though either there is an error, the explanation to a wrong answer is not always covered very clearly. Rule 34, I have found it doesn’t specify the different sound signals it just repeats one short blast three times. Improvements could be made in tracking missed questions and having those to train on. 

Thank you for making this app

### 1/5 — Bad

*2022-09-04, version 2.0*

Since you keep trying to get me to review the app after every single question, this is what you’re getting.

## Frequently asked questions about Rule Master

### What does the Rule Master app do?

Rule Master is a comprehensive quiz application designed to help users master maritime navigation rules. It provides a vast question bank, advanced filtering options, and detailed progress tracking to aid in learning and exam preparation for both new and experienced sailors.

### What are the key features of Rule Master?

Key features include over 10,000 question-answer combinations, custom question filters for targeted studying, over 100 fill-in-the-blank questions for experienced mariners, full offline capability, unlimited exam PDF generation, a digital Navigation Rules handbook, and in-depth progress tracking.

### How much does Rule Master cost?

The application is free to download and use, but it does feature in-app purchases. Specific costs for additional features or content are not detailed in the provided description.

### Is Rule Master compatible with my device?

The application is available on the iOS App Store. Specific iOS version compatibility is not detailed in the provided description, but it is designed for modern iOS devices.

### Who would benefit from using Rule Master?

Rule Master is beneficial for new and experienced sailors, students preparing for USCG Navigation Rules examinations, individuals undergoing rigorous maritime training, and instructors who wish to generate custom examinations for their students.

## Version history (last 5 releases)

### 4.3 — 2024-11-27

- Misc Improvements

### 4.2 — 2024-01-08

- Quick Exam Updates
- Accessibility Features
- Minor Bug Fixes
- Misc Improvements

### 4.1 — 2023-06-08

- Misc Improvements

### 4.0 — 2022-10-23

- Feedback System
- Minor Bug Fixes

### 3.1 — 2022-09-10

- Minor Bug Fixes

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## More apps by Universal Queue LLC

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All apps by Universal Queue LLC: https://appshunter.io/developer/1577058225

## Related topics

[marine rules of the road](https://appshunter.io/ios/topics/marine-rules-of-the-road) · [navigation rules](https://appshunter.io/ios/topics/navigation-rules) · [nav rules](https://appshunter.io/ios/topics/nav-rules)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-31.*