# ČKS vs A Plazma Prosek

The clearest difference is update cadence: ČKS at every 2 months against A Plazma Prosek's every 13 months. 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.

ČKS ships an update every 2 months, A Plazma Prosek every 13 months. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | ČKS | A Plazma Prosek |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 13 months |
| Size | 21 MB | 19 MB |
| Requires iOS | 15.0 | **14.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 17+ |
| Developer | [Trilobite Technologies, s.r.o.](https://appshunter.io/developer/1106306899) | [EI SERVICES s.r.o.](https://appshunter.io/developer/1538669362) |

## What reviewers say

### ČKS

[App page](https://appshunter.io/ios/app/cks/id1512762109)

**Features:** macOS Compatibility

**In-app purchases:** none


### A Plazma Prosek

[App page](https://appshunter.io/ios/app/a-plazma-prosek/id1614082640)

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

**In-app purchases:** none


## Frequently asked questions

### Is ČKS free?

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

### Is A Plazma Prosek free?

A Plazma Prosek is free to download, with no in-app purchases.

### Do ČKS or A Plazma Prosek have ads?

Neither ČKS nor A Plazma Prosek shows ads.

### Which is updated more often, ČKS or A Plazma Prosek?

ČKS ships an update every 2 months, and A Plazma Prosek every 13 months. Most recently, ČKS was updated on November 3, 2026 and A Plazma Prosek on October 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.*