COLREG vs TrueMag
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
COLREG
Master maritime navigation with this comprehensive guide to the International Regulations for Preventing Collisions at Sea. Learn about ship lights, day shapes, sound signals, and access the full COLREGs for safe sailing.
- Ship lights guide
- Day shapes meanings
- Sound signals library
- Complete COLREGs access
- Flashcards for study
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Introducing the Ultimate COLREG App - Your All-in-One Guide to Safe Navigation! Set sail with confidence and master the rules of the sea like never before with our comprehensive COLREG App, now available on the App Store. Whether you're a seasoned mariner or a maritime enthusiast, this app is your essential companion for understanding and applying the International Regulations for Preventing Collisions at Sea (COLREGs). β’ Ship Lights: Navigate the darkness with ease! Our app provides a detailed guide to ship lights, helping you identify vessels and their activities based on their unique light configurations. β’ Daily Shapes: Decode maritime signals effortlessly! Learn about the various day shapes and their meanings, ensuring you're always prepared to interpret the intentions of other vessels. β’ Sound Signals: Understand the language of the sea! Explore a comprehensive library of sound signals, so you can effectively communicate with other vessels and enhance safety on the water. β’ Rules: Dive deep into the COLREGs! Access the complete set of regulations, organized for easy reference, to ensure you're always aware of your rights and responsibilities at sea. β’ Flash Cards: Study on the go! Our flashcards make learning COLREGs a breeze. Test your knowledge and reinforce your understanding wherever you are. Master the art of safe navigation and enjoy peace of mind on the open water with our COLREG App. It's the ideal companion for both novice and experienced sailors, helping you stay compliant and avoid collisions. Don't leave your safety to chance β download our COLREG App today and gain the knowledge you need to sail with confidence. Make the smart choice for safe navigation and get started now! Smooth sailing is just a download away. Get our COLREG App from the App Store today and embark on a journey to safer, smarter, and more enjoyable boating experiences.
TrueMag
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Provides the variation estimate from the World Magnetic Model valid to 2029. This enables the user to convert from True to Magnetic North and vice versa.
Screenshots
Verdict
The clearest difference is price: TrueMag at Free against COLREG's $0.99. On ads, in-app purchases, device support and iOS requirement there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
TrueMag is free to download; COLREG costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | COLREG | TrueMag |
|---|---|---|
| Price | $0.99 | Free β better |
| Positive reviews | 0.0% of reviews | β |
| Update frequency | Every 7 months | β |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | β |
| Devices | iPhone, iPod | iPhone, iPod, Apple Watch β better |
| Requires iOS | 12.0 β better | 13.0 |
| Further details β not scored | ||
| Size | 133 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Oleksandr Kuzmychov | Peter Bleakley |
In-app purchases
COLREG
No in-app purchases
TrueMag
No in-app purchases









