# ChronoKeys vs KUUS. PRO

The clearest difference is device support: ChronoKeys at 3 against KUUS. PRO's —. KUUS. PRO's advantage is iOS requirement (13.0 vs 15.1). On price and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | ChronoKeys | KUUS. PRO |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | — |
| Update frequency | Every 3 months | — |
| Size | 31 MB | 158 MB |
| Requires iOS | 15.1 | **13.0** |
| Devices | **iPhone, iPad, iPod** | — |
| Age rating | 4+ | 17+ |
| Developer | [Wise Minds Academy B.V.](https://appshunter.io/developer/1542457206) | [KUUS.](https://appshunter.io/developer/1592475246) |

## What reviewers say

### ChronoKeys

[App page](https://appshunter.io/ios/app/chronokeys/id1566614074)

**Features:** macOS Compatibility

**In-app purchases:** none


### KUUS. PRO

[App page](https://appshunter.io/ios/app/kuus-pro/id6470291483)

**In-app purchases:** none


## Frequently asked questions

### Is ChronoKeys free?

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

### Is KUUS. PRO free?

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

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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.*