# 小牛二维码 vs AmazeScan

The clearest difference is in-app purchases: AmazeScan at none against 小牛二维码's 3. AmazeScan also leads on device support. 小牛二维码's advantage is iOS requirement (12.0 vs 15.0). On price there is nothing between them.

Both are free to download. 小牛二维码 sells 3 in-app purchases, starting at $0.99 per 7 days. AmazeScan asks for nothing beyond the download.

## The numbers

| Metric | 小牛二维码 | AmazeScan |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | — | No |
| Update frequency | — | Weekly |
| Size | 35 MB | 28 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | — | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Beijing Xiaoniu Kouding Technology Co., Ltd.](https://appshunter.io/developer/1733497912) | [CHIN CHIH CHIU](https://appshunter.io/developer/1831923879) |

## What reviewers say

### 小牛二维码

[App page](https://appshunter.io/ios/app/id6478612032)

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Subscribe Weekly | $0.99 | per 7 days |
| Subscribe Monthly | $0.99 | per month |
| Subscribe Annually | $5.99 | per year |


### AmazeScan

[App page](https://appshunter.io/ios/app/amazescan/id6749750669)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 小牛二维码 free?

小牛二维码 is free to download, with in-app purchases available.

### Is AmazeScan free?

AmazeScan is free to download, with no in-app purchases.

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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.*