# DoRIS mobile vs Open Sea OpenSeaMap Browser

The clearest difference is update cadence: DoRIS mobile at every 6 months against Open Sea OpenSeaMap Browser's every 102 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

DoRIS mobile ships an update every 6 months, Open Sea OpenSeaMap Browser every 102 months. Both last shipped on November 1, 2026.

## The numbers

| Metric | DoRIS mobile | Open Sea OpenSeaMap Browser |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.2 (5 ratings)](https://appshunter.io/ios/app/open-sea-openseamap-browser/id1028248846/reviews)** |
| Number of ratings | — | **5** |
| Positive reviews | — | 28.6% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 months** | Every 102 months |
| Monetization | — | Free |
| Size | 46 MB | 1 MB |
| Requires iOS | 15.6 | **15.5** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [via donau - Oesterreichische Wasserstrassen-Gesellschaft mbH](https://appshunter.io/developer/852257768) | [Mobile Geographics](https://appshunter.io/developer/286844996) |

## What reviewers say

### DoRIS mobile

[App page](https://appshunter.io/ios/app/doris-mobile/id852257765)

**Features:** macOS Compatibility

**In-app purchases:** none


### Open Sea OpenSeaMap Browser

[App page](https://appshunter.io/ios/app/open-sea-openseamap-browser/id1028248846)

This app provides access to nautical chart data and map image tiles generated by a collaborative open-source mapping project. It serves as a browser for freely usable marine navigation information.

**Highlights:** Nautical chart data access, Map image tile generation, Open-source mapping project browser, Freely usable marine navigation info

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is DoRIS mobile free?

DoRIS mobile is free to download, with no in-app purchases.

### Is Open Sea OpenSeaMap Browser free?

Open Sea OpenSeaMap Browser is free to download, with no in-app purchases.

### Do DoRIS mobile or Open Sea OpenSeaMap Browser have ads?

Neither DoRIS mobile nor Open Sea OpenSeaMap Browser shows ads.

### Which is updated more often, DoRIS mobile or Open Sea OpenSeaMap Browser?

DoRIS mobile ships an update every 6 months, and Open Sea OpenSeaMap Browser every 102 months. Most recently, DoRIS mobile was updated on November 1, 2026 and Open Sea OpenSeaMap Browser on November 1, 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.*