COLREG vs eOceanic
Price, ratings, monetisation and update history for both apps, side by side — 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). • 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. • 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. • 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. • 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. • 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 – 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.
eOceanic
Empowering boaters with comprehensive sailing intelligence for the English and Irish coasts. Download charting, tidal data, and more for offline use, ensuring a safe and enjoyable experience at sea.
- Offline charting and tidal data
- Discover nearby havens and routes
- Extensive resource search
- Raster charts with seamless scaling
- Hazard and danger alerts
- Man-Over-Board (MOB) function
- Logging and progress tracking
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At eOceanic we are passionate about boating and it is our mission to provide empowerment at sea along the English and Irish coasts, as there has never been before. We fulfil this mission by creating two sister products: The web site, eOceanic.com, and the eOceanic application system. eOceanic.com is the finest seagoing intelligence platform for England and Ireland and is available to all, for free, for the common good. The eOceanic application system is a comprehensive seagoing application that allows all of the site information, as well as charting and tidal data, to be downloaded and used offline entirely independent of the site. There is no need for a network connection anymore, you have everything you need in the palm of your hand, on your smartphone, tablet or PC, or a range of all combined so that you have ample backup capabilities. eOceanic was built from the ground up just to serve you, right where you are, in real-time and to be so effective and efficient that it is a joy to use. With eOceanic, you will find the best decisions afloat are simple to see as all the options and data points are right at the tips of your fingers. * One swipe for tides * One swipe and touch to discover all the havens around you * One swipe and touch to see all the routes and coastal cuts immediately available to you * One swipe and a few more touches if you need to look for something specific. Then its extensive resource search feature will show you where you can get exactly what you want around you. When you know what you want to do, the application’s name says it all, just touch the ‘Go’ button or an object or waypoint and you are aided on your way by the finest raster charts available. Raster charts that feature, for the first time, a single plane view of the British Isles, with seamless scaling and full ‘touch to zoom’ functionality. When you are on your way, the application will be working behind the scenes to help you have a positive, enjoyable and safe experience. By maintaining a list of outlying hazards, such as rocks, shoals, and shallows, it will make you aware as you approach any of these listed dangers. Likewise, if there is something that concerns you in your area that we have not listed yet, just let us know and we will be delighted to add it to eOceanic.com for the benefit of all and synchronised to your device. Even with the utmost care, it is fair to say even the best of us slip up from time to time, and should that happen you have the assurance of a Man-Over-Board (MOB) function sitting centrally on the chart screen all the time. Once touched it immediately switches to guiding you back to the event location and automatically logs the key data points required by the rescue services should you require their assistance. eOceanic's logging capability is not just for a MOB situation, it provides a comprehensive means of keeping track of progress and events aboard. And, should you have the benefit of a network connection and wish to share your progress with friends or family, you can share your real-time track and logs on a personal eOceanic.com map page. Alternatively, if you want to fix something, find a better way of doing things or just make life a bit more comfortable aboard, you have an immediate repository of ‘Experience’ to call upon to handle situations with inspiration and confidence. All of this is just the start. It is because we are passionate about boating, the people who need to go to sea, the power of technological innovation and our mission to provide empowerment at sea, that ‘eOceanic will revolutionise your capability afloat. Welcome to the revolution, we know you are going to like it. Please note, that whilst we provide information for free via eOceanic.com, a subscription is required to make use of the eOceanic app and the advanced navigation tools it provides.
Screenshots
Verdict
The clearest difference is price: eOceanic at Free against COLREG's $0.99. eOceanic also leads on update cadence (monthly vs every 7 months). COLREG's advantage is in-app purchases (none vs 1). On review sentiment, ads, 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
eOceanic is free to download; COLREG costs $0.99 up front. eOceanic sells 1 in-app purchase, starting at $49.99 per year. COLREG asks for nothing beyond the download.
COLREG ships an update every 7 months, eOceanic monthly. The most recent releases landed on November 7, 2026 and November 4, 2026 respectively.
| Parameter | COLREG | eOceanic |
|---|---|---|
| Price | $0.99 | Free — better |
| Positive reviews | 0.0% of reviews | 0.0% of reviews |
| Update frequency | Every 7 months | Monthly — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | Free with in-app purchases — better |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 12.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 133 MB | 83 MB |
| Age rating | 4+ | 4+ |
| Developer | Oleksandr Kuzmychov | eOceanic Limited |
Customer experience
COLREG
eOceanic
In-app purchases
COLREG
No in-app purchases
eOceanic
- eOceanic Subscription$49.991 Year









