# RG УК vs CMail Rus

The clearest difference is update cadence: CMail Rus at every 5 days against RG УК's every 3 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.

RG УК ships an update every 3 weeks, CMail Rus every 5 days. The most recent releases landed on October 14, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | RG УК | CMail Rus |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 5 days** |
| Size | 138 MB | 32 MB |
| Requires iOS | **14.0** | 15.1 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ROZENTAL GRUPP SIRIUS, OOO](https://appshunter.io/developer/1553575959) | [Alexander Poberezhets](https://appshunter.io/developer/1876802652) |

## What reviewers say

### RG УК

[App page](https://appshunter.io/ios/app/rg/id6761819592)

**In-app purchases:** none


### CMail Rus

[App page](https://appshunter.io/ios/app/cmail-rus/id6789575373)

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

**In-app purchases:** none


## Frequently asked questions

### Is RG УК free?

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

### Is CMail Rus free?

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

### Do RG УК or CMail Rus have ads?

Neither RG УК nor CMail Rus shows ads.

### Which is updated more often, RG УК or CMail Rus?

RG УК ships an update every 3 weeks, and CMail Rus every 5 days. Most recently, RG УК was updated on October 14, 2026 and CMail Rus on October 5, 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.*