# Explore with Imray vs DONIA

The clearest difference is monetization model: DONIA at freemium against Explore with Imray's subscription. DONIA also leads on review sentiment (59% vs 25%) and update cadence (fortnightly vs every 2 months). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Explore with Imray sells 1 in-app purchase, starting at $79.99 per year and DONIA sells 2 in-app purchases, starting at $2.49 per month. Whichever you choose, the download price is not the number that matters.

Explore with Imray ships an update every 2 months, DONIA fortnightly. The most recent releases landed on September 21, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | Explore with Imray | DONIA |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.5 (31 ratings)](https://appshunter.io/ios/app/donia/id751225905/reviews)** |
| Number of ratings | — | **31** |
| Positive reviews | 25.0% of reviews | **59.3% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Fortnightly** |
| Monetization | Subscription | **Freemium** |
| Size | 94 MB | 61 MB |
| Requires iOS | 16.0 | **11.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | +4 | 4+ |
| Developer | [FB Imray Laurie Norie & Wilson GmbH](https://appshunter.io/developer/1871410394) | [Andromede Oceanologie](https://appshunter.io/developer/740679172) |

## 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 |


### DONIA

[App page](https://appshunter.io/ios/app/donia/id751225905)

This app provides detailed seabed visualization and marine information for safe and respectful sea navigation. It allows users to book mooring buoys, share observations, and monitor their vessels. Access premium features like high-definition charts for enhanced planning and exploration.

**Highlights:** Seabed visualization, Marine information access, Mooring buoy booking, User observation sharing, Navigation preparation and monitoring, Mooring monitoring with alarms, Offline mapping

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| DONIA® Premium Monthly | $2.49 | per month |
| DONIA® Premium Version | $22.99 | per year |


## Frequently asked questions

### Is Explore with Imray free?

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

### Is DONIA free?

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

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

Neither Explore with Imray nor DONIA shows ads.

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

Explore with Imray ships an update every 2 months, and DONIA fortnightly. Most recently, Explore with Imray was updated on September 21, 2026 and DONIA on September 22, 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.*