# 千牛有数 vs CAJ转换器

The clearest difference is in-app purchases: 千牛有数 at none against CAJ转换器's 3. 千牛有数 also leads on iOS requirement (8.0 vs 11.0). CAJ转换器's advantage is device support (3 vs 1). On price and ads there is nothing between them.

Both are free to download. CAJ转换器 sells 3 in-app purchases, starting at $3.99 per month. 千牛有数 asks for nothing beyond the download.

## The numbers

| Metric | 千牛有数 | CAJ转换器 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (2 ratings)](https://appshunter.io/ios/app/id1296754355/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 2 months |
| Size | 179 MB | 15 MB |
| Requires iOS | **8.0** | 11.0 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Zhejiang Taobao Mall Technology Co,Ltd.](https://appshunter.io/developer/518966504) | [Beijing Chejiang Internet Technology Co., Ltd.](https://appshunter.io/developer/1680696844) |

## What reviewers say

### 千牛有数

[App page](https://appshunter.io/ios/app/id1296754355)

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


### CAJ转换器

[App page](https://appshunter.io/ios/app/caj-caj/id6447243908)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 月会员 | $3.99 | per month |
| 年会员 | $9.99 | per year |
| 永久会员 | $14.99 | one-time |


## Frequently asked questions

### Is 千牛有数 free?

千牛有数 is free to download, with no in-app purchases.

### Is CAJ转换器 free?

CAJ转换器 is free to download, with in-app purchases available.

### Do 千牛有数 or CAJ转换器 have ads?

Neither 千牛有数 nor CAJ转换器 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.*