Rule Master vs Nautical Rules
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Rule Master
Master maritime navigation rules with this comprehensive quiz app. It offers extensive question banks, custom filters, and detailed progress tracking for both new and experienced sailors. Generate custom exams and access a digital handbook for efficient learning and exam preparation.
- 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
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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.
Nautical Rules
Master USCG Navigation Rules with a comprehensive question bank and smart study features. Track your progress, practice for exams, and study offline to navigate with confidence.
- 1,200+ practice questions
- Inland and International waters coverage
- Detailed explanations
- Customizable tests
- Offline study capability
- Progress tracking dashboard
- Accuracy by rule statistics
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Nautical Rules is the ultimate study companion for mastering the USCG Navigation Rules (COLREGS). Whether you're preparing for your captain's license exam or refreshing your maritime knowledge, this app provides everything you need to succeed. COMPREHENSIVE QUESTION BANK - Over 1,200 practice questions covering all Navigation Rules - Questions for both Inland and International waters - Covers Steering & Sailing Rules, Lights & Shapes, Sound Signals, and more - Detailed explanations SMART STUDY FEATURES - Take customizable tests with 10, 25, 50, or 100 questions - Practice mode with immediate feedback and explanations - Focus Area suggestions to target your weakest rules - Bookmark questions for later review - Review your mistakes to reinforce learning TRACK YOUR PROGRESS - Activity dashboard with test history and statistics - See your accuracy by rule (Rule 1, Rule 2, etc.) - Track your study streak and mastery level - View detailed results for each completed test DESIGNED FOR MARINERS - Clean, intuitive interface optimized for study sessions - No internet connection required - study anywhere - All questions based on official USCG Navigation Rules - Perfect for captains, SWO, sailors, and maritime professionals Whether you're studying for the USCG license exam, improving your seamanship skills, or just want to stay sharp on the water, Nautical Rules gives you the tools to succeed. Download now and navigate with confidence! --- Note: This app is an educational study aid and is not affiliated with or endorsed by the U.S. Coast Guard. For official rules and regulations, consult the official USCG Navigation Rules publications.
Screenshots
Verdict
The clearest difference is review sentiment: Nautical Rules at 100% against Rule Master's 43%. Nautical Rules also leads on price (Free vs $9.99) and update cadence (every 3 weeks vs every 3 months). Rule Master's advantage is ratings volume (292 vs 4) and chart position (#30 vs unranked). On ads, in-app purchases, device support and iOS requirement there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Nautical Rules is free to download; Rule Master costs $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Nautical Rules holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Rule Master has 292 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 43% of Rule Master's written reviews are positive against 100% of Nautical Rules's.
Rule Master ships an update every 3 months, Nautical Rules every 3 weeks. The most recent releases landed on October 15, 2026 and October 6, 2026 respectively.
| Parameter | Rule Master | Nautical Rules |
|---|---|---|
| Price | $9.99 | Free — better |
| Rating | 4.8 (292 ratings) | 5.0 (4 ratings) — better |
| Positive reviews | 42.9% of reviews | 100.0% of reviews — better |
| Number of ratings | 292 — better | 4 |
| Update frequency | Every 3 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free with in-app purchases | Free — better |
| Best chart rank | #30 — better | — |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 16.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 13 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | Universal Queue LLC | Joseph Kim |
Customer experience
Rule Master
Nautical Rules
Bugs and requests
Rule Master
Reported bugs
5 issues- Questions disappear off the bottom of the screen
- Diagrams are too small to identify vessels
- Some questions have character limits over the margin
- App doesn't display quiz and verbatim in a usable manner
- Incomplete questions showing three dots (...)
Requested features
4 requests- Link relevant COLREG rule when answering correctly and incorrectly
- Expand subjects to include chemistry or history
- Improvements in tracking missed questions for training
- Display full question text when it's cut off
Nautical Rules
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Rule Master
No in-app purchases
Nautical Rules
No in-app purchases
Questions
Is Rule Master free?
Is Nautical Rules free?
Which has better reviews, Rule Master or Nautical Rules?
Do Rule Master or Nautical Rules have ads?
Which is updated more often, Rule Master or Nautical Rules?
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