# Explor Essonne vs Sonosphères

The clearest difference is update cadence: Explor Essonne at every 3 weeks against Sonosphères's every 9 months. Sonosphères's advantage is iOS requirement (11.0 vs 15.1). 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.

Explor Essonne ships an update every 3 weeks, Sonosphères every 9 months. The most recent releases landed on October 8, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Explor Essonne | Sonosphères |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 9 months |
| Size | 108 MB | 75 MB |
| Requires iOS | 15.1 | **11.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Atelier Nature](https://appshunter.io/developer/1370448795) | [Orbe](https://appshunter.io/developer/393122633) |

## What reviewers say

### Explor Essonne

[App page](https://appshunter.io/ios/app/explor-essonne/id1616139920)

**In-app purchases:** none


### Sonosphères

[App page](https://appshunter.io/ios/app/sonospheres/id6447363889)

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

**In-app purchases:** none


## Frequently asked questions

### Is Explor Essonne free?

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

### Is Sonosphères free?

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

### Do Explor Essonne or Sonosphères have ads?

Neither Explor Essonne nor Sonosphères shows ads.

### Which is updated more often, Explor Essonne or Sonosphères?

Explor Essonne ships an update every 3 weeks, and Sonosphères every 9 months. Most recently, Explor Essonne was updated on October 8, 2026 and Sonosphères on October 10, 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.*