# 隐患巡检 vs 嘉岩EAM

The clearest difference is update cadence: 嘉岩EAM at monthly against 隐患巡检's every 6 months. 嘉岩EAM also leads on iOS requirement (9.0 vs 13.0). 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.

隐患巡检 ships an update every 6 months, 嘉岩EAM monthly. The most recent releases landed on September 26, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | 隐患巡检 | 嘉岩EAM |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 6 months | **Monthly** |
| Size | 43 MB | 48 MB |
| Requires iOS | 13.0 | **9.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [帅 张](https://appshunter.io/developer/1608821543) | [Shanghai Jiayan Digital Technology Co., Ltd](https://appshunter.io/developer/1641232836) |

## What reviewers say

### 隐患巡检

[App page](https://appshunter.io/ios/app/id1626403821)

**Features:** macOS Compatibility, 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 隐患巡检 free?

隐患巡检 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 隐患巡检 or 嘉岩EAM have ads?

Both 隐患巡检 and 嘉岩EAM show ads.

### Which is updated more often, 隐患巡检 or 嘉岩EAM?

隐患巡检 ships an update every 6 months, and 嘉岩EAM monthly. Most recently, 隐患巡检 was updated on September 26, 2026 and 嘉岩EAM on September 10, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*