# Convi.BASE 棚卸し vs ProActive C4

The clearest difference is device support: Convi.BASE 棚卸し at 2 against ProActive C4's —. ProActive C4's advantage is iOS requirement (13.0 vs 18.0). 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 | Convi.BASE 棚卸し | ProActive C4 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | — |
| Update frequency | Every 6 weeks | — |
| Size | 20 MB | 27 MB |
| Requires iOS | 18.0 | **13.0** |
| Devices | **iPhone, iPad** | — |
| Age rating | 4+ | 4+ |
| Developer | [Convi.BASE Co., Ltd.](https://appshunter.io/developer/1748993468) | [SCSK Corporation](https://appshunter.io/developer/335723408) |

## What reviewers say

### Convi.BASE 棚卸し

[App page](https://appshunter.io/ios/app/convibase/id976428816)

**Features:** Vision Pro support

**In-app purchases:** none


### ProActive C4

[App page](https://appshunter.io/ios/app/proactive-c4/id1607471028)

**In-app purchases:** none


## Frequently asked questions

### Is Convi.BASE 棚卸し free?

Convi.BASE 棚卸し is free to download, with no in-app purchases.

### Is ProActive C4 free?

ProActive C4 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.*