# SeaSat vs GeoNames Map Explorer

The clearest difference is update cadence: GeoNames Map Explorer at monthly against SeaSat's every 8 months. SeaSat's advantage is iOS requirement (8.0 vs 15.6). 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.

SeaSat ships an update every 8 months, GeoNames Map Explorer monthly. The most recent releases landed on September 25, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | SeaSat | GeoNames Map Explorer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (2 ratings)](https://appshunter.io/ios/app/seasat/id932441902/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 months | **Monthly** |
| Monetization | Free | — |
| Size | 18 MB | 150 MB |
| Requires iOS | **8.0** | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Proambiente SCRL](https://appshunter.io/developer/932441901) | [Tech Maven GeoSpatial LLC](https://appshunter.io/developer/1459067502) |

## What reviewers say

### SeaSat

[App page](https://appshunter.io/ios/app/seasat/id932441902)

Access near real-time data on Sea Surface Temperature, water transparency, and chlorophyll concentration directly on your smartphone. This application provides essential environmental information for users interested in marine conditions.

**Highlights:** Sea Surface Temperature data, Water transparency information, Chlorophyll concentration readings, Near real-time updates, Smartphone accessibility

**In-app purchases:** none


### GeoNames Map Explorer

[App page](https://appshunter.io/ios/app/geonames-map-explorer/id1566866256)

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

**In-app purchases:** none


## Frequently asked questions

### Is SeaSat free?

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

### Is GeoNames Map Explorer free?

GeoNames Map Explorer is free to download, with no in-app purchases.

### Do SeaSat or GeoNames Map Explorer have ads?

Neither SeaSat nor GeoNames Map Explorer shows ads.

### Which is updated more often, SeaSat or GeoNames Map Explorer?

SeaSat ships an update every 8 months, and GeoNames Map Explorer monthly. Most recently, SeaSat was updated on September 25, 2026 and GeoNames Map Explorer on October 3, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*