# М4 Сервис vs QCMS check list

The clearest difference is update cadence: QCMS check list at weekly against М4 Сервис's every 3 weeks. QCMS check list also leads on iOS requirement (11.0 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.

М4 Сервис ships an update every 3 weeks, QCMS check list weekly. The most recent releases landed on October 19, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | М4 Сервис | QCMS check list |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Weekly** |
| Size | 68 MB | 122 MB |
| Requires iOS | 15.6 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Artem Karapetyan](https://appshunter.io/developer/1230186941) | [Ildar Khayrutdinov](https://appshunter.io/developer/1885509677) |

## What reviewers say

### М4 Сервис

[App page](https://appshunter.io/ios/app/4/id6469581667)

**Features:** macOS Compatibility

**In-app purchases:** none


### QCMS check list

[App page](https://appshunter.io/ios/app/qcms-check-list/id6761933812)

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

**In-app purchases:** none


## Frequently asked questions

### Is М4 Сервис free?

М4 Сервис is free to download, with no in-app purchases.

### Is QCMS check list free?

QCMS check list is free to download, with no in-app purchases.

### Do М4 Сервис or QCMS check list have ads?

Neither М4 Сервис nor QCMS check list shows ads.

### Which is updated more often, М4 Сервис or QCMS check list?

М4 Сервис ships an update every 3 weeks, and QCMS check list weekly. Most recently, М4 Сервис was updated on October 19, 2026 and QCMS check list on September 30, 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.*