# KohaOS vs InvenioScan

The clearest difference is in-app purchases: InvenioScan at none against KohaOS's 3. InvenioScan also leads on device support. KohaOS's advantage is iOS requirement (15.5 vs 18.6). On price there is nothing between them.

Both are free to download. KohaOS sells 3 one-off in-app purchases. InvenioScan asks for nothing beyond the download.

## The numbers

| Metric | KohaOS | InvenioScan |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | — | No |
| Size | 1 MB | 5 MB |
| Requires iOS | **15.5** | 18.6 |
| Devices | — | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Thomas Lehmann](https://appshunter.io/developer/1606822314) | [Joerg Ammann](https://appshunter.io/developer/607604092) |

## What reviewers say

### KohaOS

[App page](https://appshunter.io/ios/app/kohaos/id6467831983)

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Donation NZ$ 1.99 | $0.99 | one-time |
| Donation NZ$ 4.99 | $2.99 | one-time |
| Donation NZ$ 9.99 | $5.99 | one-time |


### InvenioScan

[App page](https://appshunter.io/ios/app/invenioscan/id6790785621)

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

**In-app purchases:** none


## Frequently asked questions

### Is KohaOS free?

KohaOS is free to download, with in-app purchases available.

### Is InvenioScan free?

InvenioScan 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.*