# 设备云维保 vs 嘉岩EAM

The clearest difference is ads: 设备云维保 at none against 嘉岩EAM's shown. 嘉岩EAM's advantage is iOS requirement (9.0 vs 15.6). On price, update cadence, 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.

Both ship on a similar rhythm, roughly monthly. The most recent releases landed on September 19, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | 设备云维保 | 嘉岩EAM |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Monthly | Monthly |
| Size | 94 MB | 48 MB |
| Requires iOS | 15.6 | **9.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Chengdu Guan Tang Technology Co., Ltd.](https://appshunter.io/developer/1065524532) | [Shanghai Jiayan Digital Technology Co., Ltd](https://appshunter.io/developer/1641232836) |

## What reviewers say

### 设备云维保

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

**Features:** Vision Pro support

**In-app purchases:** none


### 嘉岩EAM

[App page](https://appshunter.io/ios/app/eam/id1641232833)

**Features:** macOS Compatibility

**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 嘉岩EAM free?

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

### Do 设备云维保 or 嘉岩EAM have ads?

嘉岩EAM shows ads; 设备云维保 does not.

### Which is updated more often, 设备云维保 or 嘉岩EAM?

设备云维保 ships an update monthly, and 嘉岩EAM monthly. Most recently, 设备云维保 was updated on September 19, 2026 and 嘉岩EAM on September 10, 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.*