# DONIA vs Imray Navigator

The clearest difference is review sentiment: DONIA at 63% against Imray Navigator's 20%. DONIA also leads on rating (4.5 vs 1.0) and monetization model (freemium vs subscription). Imray Navigator's advantage is iOS requirement (12.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. DONIA sells 2 in-app purchases, starting at $2.49 per month and Imray Navigator sells 12 in-app purchases, starting at $37.99 per year. Whichever you choose, the download price is not the number that matters.

DONIA holds the better App Store score, 4.5 against 1.0. Both are backed by a comparable volume of ratings — 34 and 7 respectively. Written reviews point the same way: 63% of DONIA's written reviews are positive against 20% of Imray Navigator's.

DONIA ships an update every 4 weeks, Imray Navigator every 2 months. Both last shipped on October 26, 2026.

## The numbers

| Metric | DONIA | Imray Navigator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (34 ratings)](https://appshunter.io/ios/app/donia/id751225905/reviews)** | [1.0 (7 ratings)](https://appshunter.io/ios/app/imray-navigator/id1184853123/reviews) |
| Number of ratings | **34** | 7 |
| Positive reviews | **63.3% of reviews** | 19.6% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 4 weeks** | Every 2 months |
| Monetization | **Freemium** | Subscription |
| Size | 55 MB | 167 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Andromede Oceanologie](https://appshunter.io/developer/740679172) | [FB Imray Laurie Norie & Wilson GmbH](https://appshunter.io/developer/1871410394) |

## What reviewers say

### 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 |


### Imray Navigator

[App page](https://appshunter.io/ios/app/imray-navigator/id1184853123)

This marine chart plotter provides nautical charts for various sea activities. Plan passages, create routes, and share tracks. Offers GPS, tides, and AIS integration for comprehensive navigation.

**Highlights:** Nautical charts from Imray and other publishers, Passage planning and route creation, Share tracks and waypoints, GPS and instrument integration, Tides and AIS functionality, Quarterly chart updates

**Features:** Vision Pro support

**In-app purchases (12)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SHOM1 Biscay | $37.99 | per year |
| SHOM2 Med France & Corsica | $37.99 | per year |
| NL1800 Netherlands | $37.99 | per year |
| Imray ID10 North Sea yearly subscription | $39.99 | per year |
| Imray ID20 English Channel yearly subscription | $39.99 | per year |
| Imray ID40 Atlantic France, Iberia and Atlantic Islands yearly subscription | $39.99 | per year |
| Imray ID50 West Mediterranean yearly subscription | $39.99 | per year |
| Imray ID60 Central Mediterranean yearly subscription | $39.99 | per year |
| Imray ID70 East Mediterranean yearly subscription | $39.99 | per year |
| Imray ID100 East Caribbean yearly subscription | $39.99 | per year |
| Imray ID30 West Britain and Ireland yearly subscription | $39.99 | per year |
| SHOM3 North France | $44.99 | per year |


## Frequently asked questions

### Is DONIA free?

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

### Is Imray Navigator free?

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

### Which has better reviews, DONIA or Imray Navigator?

DONIA is rated higher. DONIA averages 4.5 out of 5 from 34 ratings, while Imray Navigator averages 1.0 from 7 ratings.

### Do DONIA or Imray Navigator have ads?

Neither DONIA nor Imray Navigator shows ads.

### Which is updated more often, DONIA or Imray Navigator?

DONIA ships an update every 4 weeks, and Imray Navigator every 2 months. Most recently, DONIA was updated on October 26, 2026 and Imray Navigator on October 26, 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.*