# Koppert One vs SISSEI Firma

The clearest difference is device support: Koppert One at 2 against SISSEI Firma's —. SISSEI Firma's advantage is iOS requirement (12.2 vs 16.4). 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 | Koppert One | SISSEI Firma |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | — |
| Update frequency | Every 2 months | — |
| Size | 84 MB | 26 MB |
| Requires iOS | 16.4 | **12.2** |
| Devices | **iPhone, iPad** | — |
| Age rating | 4+ | 4+ |
| Developer | [Koppert Biological Systems](https://appshunter.io/developer/1100137913) | [Sistemas Heuristicos, SA de CV](https://appshunter.io/developer/1597250886) |

## What reviewers say

### Koppert One

[App page](https://appshunter.io/ios/app/koppert-one/id1100137914)

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

**In-app purchases:** none


### SISSEI Firma

[App page](https://appshunter.io/ios/app/sissei-firma-e/id1614417255)

**In-app purchases:** none


## Frequently asked questions

### Is Koppert One free?

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

### Is SISSEI Firma free?

SISSEI Firma 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.*