# 【CO2センサー】換気エアミエル vs カロレコ

The clearest difference is device support: カロレコ at 3 against 【CO2センサー】換気エアミエル's —. 【CO2センサー】換気エアミエル's advantage is iOS requirement (12.1 vs 15.6). 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 | 【CO2センサー】換気エアミエル | カロレコ |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | — | Yes |
| Update frequency | — | Monthly |
| Size | 37 MB | 45 MB |
| Requires iOS | **12.1** | 15.6 |
| Devices | — | **iPhone, iPad, iPod** |
| Age rating | 12+ | 4+ |
| Developer | [Step One Limited](https://appshunter.io/developer/646296997) | [Naoya Takahashi](https://appshunter.io/developer/1682387197) |

## What reviewers say

### 【CO2センサー】換気エアミエル

[App page](https://appshunter.io/ios/app/co2/id1549479731)

**In-app purchases:** none


### カロレコ

[App page](https://appshunter.io/ios/app/ai/id6761247120)

**In-app purchases:** none


## Frequently asked questions

### Is 【CO2センサー】換気エアミエル free?

【CO2センサー】換気エアミエル is free to download, with no in-app purchases.

### Is カロレコ free?

カロレコ 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.*