# 变频器之家 vs 千豆故障码查询

The clearest difference is in-app purchases: 变频器之家 at none against 千豆故障码查询's 3. On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. 千豆故障码查询 sells 3 one-off in-app purchases. 变频器之家 asks for nothing beyond the download.

## The numbers

| Metric | 变频器之家 | 千豆故障码查询 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 2 months |
| Size | 142 MB | 22 MB |
| Requires iOS | 10.0 | **9.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Hebei ZaiXun Network Technology Co., Ltd.](https://appshunter.io/developer/994393282) | [Changsha Gengyun Network Technology Co., Ltd](https://appshunter.io/developer/1498713734) |

## What reviewers say

### 变频器之家

[App page](https://appshunter.io/ios/app/id1661608593)

**Features:** macOS Compatibility

**In-app purchases:** none


### 千豆故障码查询

[App page](https://appshunter.io/ios/app/id6444245231)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 30天会员 | $0.99 | one-time |
| 季卡会员 | $2.99 | one-time |
| 年卡会员 | $7.99 | one-time |


## Frequently asked questions

### Is 变频器之家 free?

变频器之家 is free to download, with no in-app purchases.

### Is 千豆故障码查询 free?

千豆故障码查询 is free to download, with in-app purchases available.

### Do 变频器之家 or 千豆故障码查询 have ads?

Neither 变频器之家 nor 千豆故障码查询 shows ads.

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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.*