# 桥梁监测 vs 质量验评

The clearest difference is update cadence: 桥梁监测 at every 10 days against 质量验评's monthly. 质量验评's advantage is iOS requirement (9.0 vs 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.

桥梁监测 ships an update every 10 days, 质量验评 monthly. The most recent releases landed on October 3, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | 桥梁监测 | 质量验评 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 10 days** | Monthly |
| Size | 60 MB | 50 MB |
| Requires iOS | 11.0 | **9.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Yunnan Aerospace Engineering Geophysical Detecting Co.,Ltd.](https://appshunter.io/developer/1555410098) | [Chengdu Simutech Science& Technology Co.,Ltd](https://appshunter.io/developer/1104870335) |

## What reviewers say

### 桥梁监测

[App page](https://appshunter.io/ios/app/id1521403286)

**Features:** macOS Compatibility

**In-app purchases:** none


### 质量验评

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

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

**In-app purchases:** none


## Frequently asked questions

### Is 桥梁监测 free?

桥梁监测 is free to download, with no in-app purchases.

### Is 质量验评 free?

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

### Do 桥梁监测 or 质量验评 have ads?

Neither 桥梁监测 nor 质量验评 shows ads.

### Which is updated more often, 桥梁监测 or 质量验评?

桥梁监测 ships an update every 10 days, and 质量验评 monthly. Most recently, 桥梁监测 was updated on October 3, 2026 and 质量验评 on October 15, 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.*