# 设备云维保 vs 树字MES

The clearest difference is iOS requirement: 树字MES at 12.0 against 设备云维保's 15.6. On price, update cadence, ads and in-app purchases there is nothing between them.

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

设备云维保 ships an update monthly, 树字MES every 3 weeks. The most recent releases landed on September 19, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | 设备云维保 | 树字MES |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 3 weeks** |
| Size | 94 MB | 43 MB |
| Requires iOS | 15.6 | **12.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Chengdu Guan Tang Technology Co., Ltd.](https://appshunter.io/developer/1065524532) | [Shenzhen Shuzi Information Technology Co., Ltd.](https://appshunter.io/developer/1448228124) |

## What reviewers say

### 设备云维保

[App page](https://appshunter.io/ios/app/id1414770140)

**Features:** Vision Pro support

**In-app purchases:** none


### 树字MES

[App page](https://appshunter.io/ios/app/mes/id1576305439)

**In-app purchases:** none


## Frequently asked questions

### Is 设备云维保 free?

设备云维保 is free to download, with no in-app purchases.

### Is 树字MES free?

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

### Do 设备云维保 or 树字MES have ads?

Neither 设备云维保 nor 树字MES shows ads.

### Which is updated more often, 设备云维保 or 树字MES?

设备云维保 ships an update monthly, and 树字MES every 3 weeks. Most recently, 设备云维保 was updated on September 19, 2026 and 树字MES on September 17, 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.*