# ワイヤレス温湿度計 vs BTワットチェッカー

The clearest difference is iOS requirement: ワイヤレス温湿度計 at 8.0 against BTワットチェッカー's 15.6. On price, update cadence, ads 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.

Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on October 19, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | ワイヤレス温湿度計 | BTワットチェッカー |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 35.7% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | Every 3 months |
| Size | 4 MB | 3 MB |
| Requires iOS | **8.0** | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Step One Limited](https://appshunter.io/developer/646296997) | [RATOC Systems, Inc.](https://appshunter.io/developer/568725272) |

## What reviewers say

### ワイヤレス温湿度計

[App page](https://appshunter.io/ios/app/id937135525)

**Features:** macOS Compatibility

**In-app purchases:** none


### BTワットチェッカー

[App page](https://appshunter.io/ios/app/bt/id1490362165)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ワイヤレス温湿度計 free?

ワイヤレス温湿度計 is free to download, with no in-app purchases.

### Is BTワットチェッカー free?

BTワットチェッカー is free to download, with no in-app purchases.

### Do ワイヤレス温湿度計 or BTワットチェッカー have ads?

Neither ワイヤレス温湿度計 nor BTワットチェッカー shows ads.

### Which is updated more often, ワイヤレス温湿度計 or BTワットチェッカー?

ワイヤレス温湿度計 ships an update every 3 months, and BTワットチェッカー every 3 months. Most recently, ワイヤレス温湿度計 was updated on October 19, 2026 and BTワットチェッカー on October 25, 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.*