# Explore with Imray vs COLREG

The clearest difference is price: Explore with Imray at Free against COLREG's $0.99. Explore with Imray also leads on review sentiment (25% vs 0%) and update cadence (every 2 months vs every 7 months). COLREG's advantage is in-app purchases (none vs 1) and iOS requirement (12.0 vs 16.0). On ads and device support there is nothing between them.

Explore with Imray is free to download; COLREG costs $0.99 up front. Explore with Imray sells 1 in-app purchase, starting at $79.99 per year. COLREG asks for nothing beyond the download.

Explore with Imray ships an update every 2 months, COLREG every 7 months. The most recent releases landed on September 21, 2026 and September 15, 2026 respectively.

## The numbers

| Metric | Explore with Imray | COLREG |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Positive reviews | **25.0% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 7 months |
| Monetization | Subscription | **Paid** |
| Size | 94 MB | 133 MB |
| Requires iOS | 16.0 | **12.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | +4 | 4+ |
| Developer | [FB Imray Laurie Norie & Wilson GmbH](https://appshunter.io/developer/1871410394) | [Oleksandr Kuzmychov](https://appshunter.io/developer/1623095994) |

## What reviewers say

### Explore with Imray

[App page](https://appshunter.io/ios/app/explore-with-imray/id370885968)

Access Imray's renowned cruising guides and pilot books on your mobile device. This app provides verified sailing directions, marina data, and points of interest for over 17,000 locations, all available offline. Enhance your passage planning and sailing experience with trusted, first-hand researched content.

**Highlights:** Offline cruising guides, Verified pilotage information, Marina and anchorage data, Bookmark and filter locations, Satellite map view, User feedback submission

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Explore Annual Membership | $79.99 | per year |


### 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


## Frequently asked questions

### Is Explore with Imray free?

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

### Is COLREG free?

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

### Do Explore with Imray or COLREG have ads?

Neither Explore with Imray nor COLREG shows ads.

### Which is updated more often, Explore with Imray or COLREG?

Explore with Imray ships an update every 2 months, and COLREG every 7 months. Most recently, Explore with Imray was updated on September 21, 2026 and COLREG on September 15, 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.*