# Seapilot vs Open Sea OpenSeaMap Browser

The clearest difference is rating: Open Sea OpenSeaMap Browser at 3.2 against Seapilot's 2.8. Open Sea OpenSeaMap Browser also leads on monetization model (free vs free with in-app purchases). Seapilot's advantage is update cadence (every 3 months vs every 102 months) and review sentiment (38% vs 29%). 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.

Open Sea OpenSeaMap Browser holds the better App Store score, 3.2 against 2.8. Both are backed by a comparable volume of ratings — 16 and 5 respectively. Written reviews complicate that: 38% of Seapilot's written reviews are positive against 29% of Open Sea OpenSeaMap Browser's, so the app with the better star average is not the one people write more warmly about.

Seapilot ships an update every 3 months, Open Sea OpenSeaMap Browser every 102 months. Both last shipped on November 1, 2026.

## The numbers

| Metric | Seapilot | Open Sea OpenSeaMap Browser |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.8 (16 ratings)](https://appshunter.io/ios/app/seapilot/id915818783/reviews) | **[3.2 (5 ratings)](https://appshunter.io/ios/app/open-sea-openseamap-browser/id1028248846/reviews)** |
| Number of ratings | **16** | 5 |
| Positive reviews | **38.1% of reviews** | 28.6% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 102 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 107 MB | 1 MB |
| Requires iOS | **9.3** | 15.5 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Seapilot](https://appshunter.io/developer/449148590) | [Mobile Geographics](https://appshunter.io/developer/286844996) |

## What reviewers say

### Seapilot

[App page](https://appshunter.io/ios/app/seapilot/id915818783)

Navigate like a professional with this marine navigation app. It offers vectorized chart data, AIS, and weather forecasts, bringing merchant shipping technology to your mobile device. Plan trips, track your vessel, and access advanced navigation tools.

**Highlights:** Vectorized S-57 chart data, Automatic Identification System (AIS), Built-in weather forecasts, Positioning and background positioning via GPS, Man Overboard function, Premium features like Weather Routing

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

**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 Seapilot free?

Seapilot 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.

### Which has better reviews, Seapilot or Open Sea OpenSeaMap Browser?

Open Sea OpenSeaMap Browser is rated higher. Seapilot averages 2.8 out of 5 from 16 ratings, while Open Sea OpenSeaMap Browser averages 3.2 from 5 ratings.

### Do Seapilot or Open Sea OpenSeaMap Browser have ads?

Neither Seapilot nor Open Sea OpenSeaMap Browser shows ads.

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

Seapilot ships an update every 3 months, and Open Sea OpenSeaMap Browser every 102 months. Most recently, Seapilot 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.*