# 质量验评 vs 含水量监测

The clearest difference is iOS requirement: 质量验评 at 9.0 against 含水量监测's 11.0. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | 质量验评 | 含水量监测 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | — |
| Size | 50 MB | 18 MB |
| Requires iOS | **9.0** | 11.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 17+ |
| Developer | [Chengdu Simutech Science& Technology Co.,Ltd](https://appshunter.io/developer/1104870335) | [Xian Xingtu intelligent drawing Digital Technology Co., Ltd](https://appshunter.io/developer/1543645108) |

## What reviewers say

### 质量验评

[App page](https://appshunter.io/ios/app/id6450734715)

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

**In-app purchases:** none


### 含水量监测

[App page](https://appshunter.io/ios/app/id6473333903)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 质量验评 free?

质量验评 is free to download, with no in-app purchases.

### Is 含水量监测 free?

含水量监测 is free to download, with no in-app purchases.

### Do 质量验评 or 含水量监测 have ads?

Neither 质量验评 nor 含水量监测 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.*