# ČKS vs Kázetka

The clearest difference is update cadence: Kázetka at every 9 days against ČKS's every 2 months. Kázetka also leads on iOS requirement (11.0 vs 15.0). 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, Kázetka every 9 days. Both last shipped on November 3, 2026.

## The numbers

| Metric | ČKS | Kázetka |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 9 days** |
| Size | 21 MB | 48 MB |
| Requires iOS | 15.0 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 17+ |
| Developer | [Trilobite Technologies, s.r.o.](https://appshunter.io/developer/1106306899) | [Krajska zdravotni, a.s.](https://appshunter.io/developer/1601232136) |

## What reviewers say

### ČKS

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

**Features:** macOS Compatibility

**In-app purchases:** none


### Kázetka

[App page](https://appshunter.io/ios/app/kazetka/id1601232134)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ČKS free?

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

### Is Kázetka free?

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

### Do ČKS or Kázetka have ads?

Neither ČKS nor Kázetka shows ads.

### Which is updated more often, ČKS or Kázetka?

ČKS ships an update every 2 months, and Kázetka every 9 days. Most recently, ČKS was updated on November 3, 2026 and Kázetka on November 3, 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.*