# ワイヤレスCO2モニター vs FlexiPedia

The clearest difference is in-app purchases: ワイヤレスCO2モニター at none against FlexiPedia's 4. ワイヤレスCO2モニター also leads on ads (none vs shown) and iOS requirement (8.0 vs 18.0). FlexiPedia's advantage is update cadence (fortnightly vs every 11 months). On price and device support there is nothing between them.

Both are free to download. FlexiPedia sells 4 in-app purchases, starting at $0.99 per month. ワイヤレスCO2モニター asks for nothing beyond the download.

ワイヤレスCO2モニター ships an update every 11 months, FlexiPedia fortnightly. The most recent releases landed on September 10, 2026 and September 15, 2026 respectively.

## The numbers

| Metric | ワイヤレスCO2モニター | FlexiPedia |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 11 months | **Fortnightly** |
| Size | 4 MB | 111 MB |
| Requires iOS | **8.0** | 18.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Step One Limited](https://appshunter.io/developer/646296997) | [Rikuu Sono](https://appshunter.io/developer/1708796439) |

## What reviewers say

### ワイヤレスCO2モニター

[App page](https://appshunter.io/ios/app/co2/id1162038614)

**Features:** macOS Compatibility

**In-app purchases:** none


### FlexiPedia

[App page](https://appshunter.io/ios/app/flexipedia/id6467555148)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 Month | $0.99 | per month |
| 3 Months | $3.99 | per 3 months |
| 6 Months | $6.99 | per 6 months |
| Annual | $9.99 | per year |


## Frequently asked questions

### Is ワイヤレスCO2モニター free?

ワイヤレスCO2モニター is free to download, with no in-app purchases.

### Is FlexiPedia free?

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

### Do ワイヤレスCO2モニター or FlexiPedia have ads?

FlexiPedia shows ads; ワイヤレスCO2モニター does not.

### Which is updated more often, ワイヤレスCO2モニター or FlexiPedia?

ワイヤレスCO2モニター ships an update every 11 months, and FlexiPedia fortnightly. Most recently, ワイヤレスCO2モニター was updated on September 10, 2026 and FlexiPedia on September 15, 2026.

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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.*