# Johan Rönning vs center.is

The clearest difference is device support: Johan Rönning at 3 against center.is's 1. Johan Rönning also leads on iOS requirement (12.0 vs 16.4). On price, ads 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 | Johan Rönning | center.is |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | — |
| Size | 47 MB | 48 MB |
| Requires iOS | **12.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Fagkaup ehf.](https://appshunter.io/developer/1677120813) | [Center Software](https://appshunter.io/developer/527021701) |

## What reviewers say

### Johan Rönning

[App page](https://appshunter.io/ios/app/johan-ronning/id6446281904)

**In-app purchases:** none


### center.is

[App page](https://appshunter.io/ios/app/centeris/id6810285280)

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

**In-app purchases:** none


## Frequently asked questions

### Is Johan Rönning free?

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

### Is center.is free?

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

### Do Johan Rönning or center.is have ads?

Neither Johan Rönning nor center.is shows ads.

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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.*