# COLREG vs eOceanic

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.

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.

## The numbers

| Metric | COLREG | eOceanic |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Positive reviews | 0.0% of reviews | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 7 months | **Monthly** |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 133 MB | 83 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Oleksandr Kuzmychov](https://appshunter.io/developer/1623095994) | [eOceanic Limited](https://appshunter.io/developer/1801941274) |

## What reviewers say

### COLREG

[App page](https://appshunter.io/ios/app/colreg/id6446209111)

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.

**Highlights:** Ship lights guide, Day shapes meanings, Sound signals library, Complete COLREGs access, Flashcards for study

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### eOceanic

[App page](https://appshunter.io/ios/app/eoceanic/id6743214768)

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.

**Highlights:** 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

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| eOceanic Subscription | $49.99 | per year |


## Frequently asked questions

### Is COLREG free?

COLREG costs $0.99, with no in-app purchases.

### Is eOceanic free?

eOceanic is free to download, with in-app purchases available.

### Do COLREG or eOceanic have ads?

Neither COLREG nor eOceanic shows ads.

### Which is updated more often, COLREG or eOceanic?

COLREG ships an update every 7 months, and eOceanic monthly. Most recently, COLREG was updated on November 7, 2026 and eOceanic on November 4, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*