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.
According to SubPrice AI's current price data, Rule Master (App Purchase) subscription prices vary significantly across 1 regions. The lowest price region is United States (¥72.53/mo), the highest is United States (¥72.53/mo), with maximum savings of 0%.
Global Price Table
App Purchase · 1 regions
| # | Region | Savings | ||
|---|---|---|---|---|
| 1 | 🇺🇸United States | $9.99USD | ¥72.53 | — |
Price Trends
* Historical data is simulated for demo purposes
Price Statistics
Plan Features
Prices are sourced from public data. Cross-region purchases carry platform policy risks. We are not responsible for purchase outcomes.
⚠️ Cross-Region Purchase Risks
Cross-region purchases may involve account region restrictions, payment verification, refund difficulties, exchange rate fluctuations, tax changes, and platform policy updates. SubPrice AI provides price information and decision support only. We do not guarantee purchase success or take responsibility for outcomes. Please research the target region's platform policies before proceeding.
Frequently Asked Questions
Which region has the cheapest Rule Master subscription?
According to SubPrice AI data, Rule Master (App Purchase) is currently cheapest in United States at approximately $9.99/month. Prices may change with exchange rates and platform policies.
How often are Rule Master prices updated?
SubPrice AI automatically scrapes the latest subscription prices from App Store pages across all regions daily, converting them using real-time exchange rates. Data is typically updated around 14:00 Beijing time (06:00 UTC) each day.
What are the risks of cross-region purchases?
Cross-region purchases may involve: 1) Changing your Apple ID region; 2) Needing local payment methods or gift cards; 3) Refunds may be more difficult; 4) Exchange rates may change at renewal; 5) Platforms may restrict cross-region activity. We recommend understanding these risks before proceeding.
Where does SubPrice AI get its price data?
SubPrice AI's price data comes from public App Store pages across regions. We use automated scrapers to fetch subscription prices from 20 App Store regions daily, with real-time exchange rates from Frankfurter API for conversions. All prices are tax-inclusive App Store listed prices.