# Eforsair mobile vs Mobile COS

The clearest difference is update cadence: Mobile COS at every 4 days against Eforsair mobile's every 2 weeks. 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.

Eforsair mobile ships an update every 2 weeks, Mobile COS every 4 days. The most recent releases landed on October 13, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Eforsair mobile | Mobile COS |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 4 days** |
| Size | 33 MB | 49 MB |
| Requires iOS | **15.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [EFORSA](https://appshunter.io/developer/1646018718) | [Jean-Jacques Casalot](https://appshunter.io/developer/1117085188) |

## What reviewers say

### Eforsair mobile

[App page](https://appshunter.io/ios/app/eforsair-mobile/id6443447647)

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

**In-app purchases:** none


### Mobile COS

[App page](https://appshunter.io/ios/app/mobile-cos/id6802758059)

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

**In-app purchases:** none


## Frequently asked questions

### Is Eforsair mobile free?

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

### Is Mobile COS free?

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

### Do Eforsair mobile or Mobile COS have ads?

Neither Eforsair mobile nor Mobile COS shows ads.

### Which is updated more often, Eforsair mobile or Mobile COS?

Eforsair mobile ships an update every 2 weeks, and Mobile COS every 4 days. Most recently, Eforsair mobile was updated on October 13, 2026 and Mobile COS on October 16, 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.*