# 【CO2センサー】換気エアミエル vs できた日

The clearest difference is in-app purchases: 【CO2センサー】換気エアミエル at none against できた日's 3. 【CO2センサー】換気エアミエル also leads on iOS requirement (12.1 vs 16.4). できた日's advantage is device support. On price there is nothing between them.

Both are free to download. できた日 sells 3 in-app purchases, starting at $1.99 per month. 【CO2センサー】換気エアミエル asks for nothing beyond the download.

## The numbers

| Metric | 【CO2センサー】換気エアミエル | できた日 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | — | No |
| Update frequency | — | Every 2 days |
| Size | 37 MB | 69 MB |
| Requires iOS | **12.1** | 16.4 |
| Devices | — | **iPhone, iPad** |
| Age rating | 12+ | 17+ |
| Developer | [Step One Limited](https://appshunter.io/developer/646296997) | [KAZUKI SAWASHIMA](https://appshunter.io/developer/6792463378) |

## 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


### できた日

[App page](https://appshunter.io/ios/app/id6809199621)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PRO 月額 | $1.99 | per month |
| PRO 年額 | $11.99 | per year |
| PRO 買い切り | $19.99 | one-time |


## 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 できた日 free?

できた日 is free to download, with in-app purchases available.

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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.*