# DONIA vs PortView Mobile

The clearest difference is review sentiment: PortView Mobile at 100% against DONIA's 63%. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. DONIA sells 2 in-app purchases, starting at $2.49 per month and PortView Mobile sells 1 in-app purchase, starting at $12.49 per year. Whichever you choose, the download price is not the number that matters.

DONIA ships an update every 4 weeks, PortView Mobile every 2 weeks. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | DONIA | PortView Mobile |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (34 ratings)](https://appshunter.io/ios/app/donia/id751225905/reviews)** | — |
| Number of ratings | **34** | — |
| Positive reviews | 63.3% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 4 weeks | **Every 2 weeks** |
| Monetization | Freemium | Free with in-app purchases |
| Size | 55 MB | 68 MB |
| Requires iOS | **15.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Andromede Oceanologie](https://appshunter.io/developer/740679172) | [Ports Software Solutions](https://appshunter.io/developer/1741775455) |

## 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 |


### PortView Mobile

[App page](https://appshunter.io/ios/app/portview-mobile/id1517446556)

This app simplifies marina arrivals and enhances the boating experience. It provides smart access, real-time notifications, and AR-guided navigation to your assigned berth. Focus on sailing with seamless marina integration.

**Highlights:** Assigned berth location, Phone-based marina access via QR codes, Real-time marina notifications, Augmented reality navigation, Voice and AR berth guidance, Community-shared sea alerts

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| $12.49 year | $12.49 | per year |

**What reviewers like**

- 👍 Easy to use and practical
- 🗺️ Accurate and detailed maps
- 📍 Excellent guidance to mooring
- ✨ Innovative augmented reality feature
- 💰 Affordable and great value

**What reviewers complain about**

- ⚠️ Difficulty detecting AIS targets
- ❓ Password management and communication issues
- 📉 Offline maps became a paid service
- 🚧 Missing some shallow places when creating routes
- 🖱️ Back button behavior could be improved

**Reported bugs**

- Payment setup button not working
- Blank screen when trying to contact support

**Requested features**

- Include tidal streams for better passage planning
- Add a function to estimate maximum fuel range with alarms
- An icon showing current location
- Improve back button functionality to deselect coordinates instead of exiting app


## Frequently asked questions

### Is DONIA free?

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

### Is PortView Mobile free?

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

### Do DONIA or PortView Mobile have ads?

Neither DONIA nor PortView Mobile shows ads.

### Which is updated more often, DONIA or PortView Mobile?

DONIA ships an update every 4 weeks, and PortView Mobile every 2 weeks. Most recently, DONIA was updated on November 1, 2026 and PortView Mobile on November 3, 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.*