# Open Sea OpenSeaMap Browser

> Browser for freely usable nautical chart data and map tiles. (iPhone/iPad app by Mobile Geographics.)

- Source: https://appshunter.io/ios/app/open-sea-openseamap-browser/id1028248846 (this page in markdown: same URL + `.md`)
- Developer: [Mobile Geographics](https://appshunter.io/developer/286844996)
- Category: Navigation, Reference
- Price: Free
- Rating: 3.20/5 from 5 App Store ratings · 4 written reviews indexed
- Age rating: 4+
- Requires: iOS 15.5 · 1 MB
- Languages: American English
- Released: 2015-08-25
- Data updated: 2026-06-11
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/open-sea-openseamap-browser/id1028248846/reviews.md

## What is Open Sea OpenSeaMap Browser?

Open Sea is a browser for the maps produced by the OpenSeaMap project. OpenSeaMap is a subproject of OpenStreetMap, and generates freely usable nautical chart data and map image tiles.

## Key features

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

## Recent user reviews (4 of 4)

All indexed reviews: https://appshunter.io/ios/app/open-sea-openseamap-browser/id1028248846/reviews.md

### 3/5 — Useful but not the ants pants

*2024-11-24*

Pretty good for map and markers but no reliable depth details. OK therefore for sports and recreation use. More serious users would prefer C-map paid version.

### 1/5 — Why

*2020-07-07*

For any Great Lakes  users it's useless.  No data whatever.

### 4/5 — Needs more coverage

*2019-03-07*

The OpenSeaMap project appears to only cover some specific areas, but from what I can see where there is data provided it looks great. I look forward to US West coast coverage!!

### 1/5 — No information provided

*2018-05-13*

This app provides zero marine information overlay.  Only provides a generic land map.  No marine information provided

## Frequently asked questions about Open Sea OpenSeaMap Browser

### What is Open Sea OpenSeaMap Browser?

Open Sea OpenSeaMap Browser is an application that allows users to access and view nautical chart data and map image tiles. These maps are generated by the OpenSeaMap project, a subproject of OpenStreetMap.

### Is Open Sea OpenSeaMap Browser free to use?

Yes, Open Sea OpenSeaMap Browser is available for free. It does not have any in-app purchases or advertisements, making it a completely free experience for users.

### What devices does Open Sea OpenSeaMap Browser support?

Open Sea OpenSeaMap Browser is designed for Apple devices, specifically supporting iPhone, iPad, and iPod. It is not currently available for Android or other operating systems.

### How often is Open Sea OpenSeaMap Browser updated?

The app was last updated on January 22, 2024, with version 1.1. While the release date is August 25, 2015, the recent update suggests ongoing maintenance and potential improvements.

### What is the age rating for Open Sea OpenSeaMap Browser?

Open Sea OpenSeaMap Browser has an age rating of 4+. This indicates it is suitable for users of all ages, with no mature content restrictions.

### What kind of map data does Open Sea OpenSeaMap Browser provide?

The app provides access to freely usable nautical chart data and map image tiles. This data is specifically generated for marine navigation purposes by the OpenSeaMap project.

### What is the user rating for Open Sea OpenSeaMap Browser?

Open Sea OpenSeaMap Browser has a rating of 3.2 stars based on 5 user ratings. This suggests a mixed reception among its current user base.

## Version history (last 2 releases)

### 1.1 — 2024-01-22

Bug fixes and improvements.

### 1.0 — 2015-08-25

This app has been updated by Apple to display the Apple Watch app icon.

## Apps similar to Open Sea OpenSeaMap Browser

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [mKart Marine Navigation](https://appshunter.io/ios/app/mkart-marine-navigation/id1491503791) | 2.3 (3) | Free | Navigation |
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| [Marine Navigation Lite](https://appshunter.io/ios/app/marine-navigation-lite/id609276931) | — | Free | Navigation |
| [WinGPS Marine](https://appshunter.io/ios/app/wingps-marine/id1398954055) | 1.3 (3) | Free | Navigation |
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## More apps by Mobile Geographics

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All apps by Mobile Geographics: https://appshunter.io/developer/286844996

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-11.*