Navigation Rules vs MyCG
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Navigation Rules
Access the complete International Regulations for Preventing Collisions at Sea (COLREGs) and Inland Navigation Rules. This app provides a searchable, annotated version of boating regulations, ideal for quick reference and sharing information.
- COLREGs and Inland Navigation Rules
- Annotated table of contents
- Search function
- Favorites page
- Email sharing
Read full descriptionHide full description
Navigation Rules contains a complete copy of the International Regulations for Preventing Collisions at Sea, 1972 (COLREGS), including amendments and the Inland Navigation Rules, in effect for all inland waters, including the Great Lakes. App is COLREGs most recent version dated - June 28th, 2019. This app includes an annotated table of contents and a search function to help the reader quickly find the rule and related references. A Favorites page allows quick access to commonly referenced pages. Use the email function to share a page with others. If you are a boater you need to know this information. You might also be interested in our other boating apps: - Boater’s Pocket Reference - Boating Calcs - Seamanship - Ship Captain's Medical Guide
MyCG
Stay informed about the United States Coast Guard with instant updates, the latest news, and an easy-to-use directory. Access information about upcoming events and more, all in one place.
- Instant notifications
- Latest USCG news
- Contact directory
- Event updates
Read full descriptionHide full description
The United States Coast Guard (USCG) is the maritime security, search and rescue, and law enforcement service branch of the United States Armed Forces and one of the country's eight uniformed services. The Coast Guard is a maritime, military, multi-mission service unique among the U.S. military branches for having a maritime law enforcement[7] mission with jurisdiction in both domestic and international waters and a federal regulatory agency mission as part of its duties. With the MyCG App, staying involved and up to date with the USCG is easier and more enjoyable than ever before. Everything you want to know about the U.S. Coast Guard is at your fingertips! Some of the features include: *NOTIFICATIONS - Receive instant updates *NEWS - Get the latest USCG News *DIRECTORY - Easily find the contacts you need *EVENTS - Stay up to date with the latest events And more!
Screenshots
Verdict
The clearest difference is review sentiment: Navigation Rules at 86% against MyCG's 5%. Navigation Rules also leads on rating (4.8 vs 1.2) and update cadence (every 4 months vs every 16 months). MyCG's advantage is price (Free vs $3.99). On ratings volume, ads, in-app purchases and monetization model 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
MyCG is free to download; Navigation Rules costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Navigation Rules holds the better App Store score, 4.8 against 1.2. Both are backed by a comparable volume of ratings — 386 and 446 respectively. Written reviews point the same way: 86% of Navigation Rules's written reviews are positive against 5% of MyCG's.
Navigation Rules ships an update every 4 months, MyCG every 16 months. The most recent releases landed on September 25, 2026 and July 5, 2026 respectively.
| Parameter | Navigation Rules | MyCG |
|---|---|---|
| Price | $3.99 | Free — better |
| Rating | 4.8 (386 ratings) — better | 1.2 (446 ratings) |
| Positive reviews | 85.7% of reviews — better | 5.0% of reviews |
| Number of ratings | 386 | 446 — better |
| Update frequency | Every 4 months — better | Every 16 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 9.3 — better | 16.2 |
| Further details — not scored | ||
| Size | 35 MB | 160 MB |
| Age rating | +4 | 9+ |
| Developer | Calculated Industries | U.S. Coast Guard |
Customer experience
Navigation Rules
MyCG
User reviews
Navigation Rules
From 386 App Store ratingsWhat we love
- 👍 Easy to navigate and user-friendly interface
- 📚 Comprehensive reference material for navigation rules
- 🚀 Quick access to rules on-the-go
- 🎓 Excellent study tool for maritime exams and licenses
- 📖 Well-organized table of contents and structure
Room to improve
- 🐛 Poor navigation between rules requires multiple menu presses
- 📄 Walls of text with limited visual content
- 🎨 Inconsistent formatting in some sections (e.g., 8F(iii))
- ❌ Limited additional features beyond basic text content
- 🔄 Clicking definitions forces users to search for original page again
MyCG
From 446 App Store ratingsWhat we love
- ⭐ Great app
- 🎧 Useful for listening to podcasts
Room to improve
- 🗓️ Outdated information
- 🔗 Broken links
- 🤔 Misleading feedback articles
- 🚫 Removed features (beard poll)
- 💤 Lack of updates and relevance
Bugs and requests
Navigation Rules
Reported bugs
4 issues- Formatting inconsistency in rule 8F(iii)
- Navigation issues when jumping between non-sequential rules
- Definition links don't provide easy return to original page
- Typos present in content
Requested features
7 requests- Quiz or test functionality for self-assessment
- Easier rule-to-rule navigation without menu cycling
- More visual illustrations and diagrams throughout
- Back button functionality when accessing definitions
- Option to separate international and inland rules
Show 2 moreShow fewer
- Interactive flashcards for light signals
- Additional bells and whistles beyond basic manual content
MyCG
Reported bugs
2 issues- Inaccurate unit information
- Glitchy and non-functional
Requested features
3 requests- Bring back beards poll
- Add rum rations
- Improve communication and transparency
In-app purchases
Navigation Rules
No in-app purchases
MyCG
No in-app purchases
