# ワイヤレスCO2モニター vs ワンタップブラウザ

The clearest difference is in-app purchases: ワイヤレスCO2モニター at none against ワンタップブラウザ's 1. ワイヤレスCO2モニター also leads on iOS requirement (8.0 vs 18.0). ワンタップブラウザ's advantage is update cadence (fortnightly vs every 11 months). On price, ads and device support there is nothing between them.

Both are free to download. ワンタップブラウザ sells 1 one-off in-app purchase. 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, ワンタップブラウザ fortnightly. The most recent releases landed on September 10, 2026 and September 3, 2026 respectively.

## The numbers

| Metric | ワイヤレスCO2モニター | ワンタップブラウザ |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 11 months | **Fortnightly** |
| Size | 4 MB | 12 MB |
| Requires iOS | **8.0** | 18.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [Step One Limited](https://appshunter.io/developer/646296997) | [Osawa Takuya](https://appshunter.io/developer/1526037490) |

## 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


### ワンタップブラウザ

[App page](https://appshunter.io/ios/app/id1541124238)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ワンタップブラウザ プレミアム | $1.99 | one-time |


## 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 ワンタップブラウザ free?

ワンタップブラウザ is free to download, with in-app purchases available.

### Do ワイヤレスCO2モニター or ワンタップブラウザ have ads?

Neither ワイヤレスCO2モニター nor ワンタップブラウザ shows ads.

### Which is updated more often, ワイヤレスCO2モニター or ワンタップブラウザ?

ワイヤレスCO2モニター ships an update every 11 months, and ワンタップブラウザ fortnightly. Most recently, ワイヤレスCO2モニター was updated on September 10, 2026 and ワンタップブラウザ on September 3, 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.*