# Asun vs 中天安管

The clearest difference is update cadence: Asun at every 2 months against 中天安管's every 10 months. Asun also leads on iOS requirement (9.0 vs 12.0). 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.

Asun ships an update every 2 months, 中天安管 every 10 months. Both last shipped on November 7, 2026.

## The numbers

| Metric | Asun | 中天安管 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 10 months |
| Size | 32 MB | 61 MB |
| Requires iOS | **9.0** | 12.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Jiangsu Zhongtian Interconnected Technology Co.,Ltd.](https://appshunter.io/developer/1530306730) | [Suzhou Wenku Safety Technology Engineering Co., Ltd](https://appshunter.io/developer/1558791524) |

## What reviewers say

### Asun

[App page](https://appshunter.io/ios/app/asun-eam/id6443746041)

**Features:** macOS Compatibility

**In-app purchases:** none


### 中天安管

[App page](https://appshunter.io/ios/app/id6461729179)

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

**In-app purchases:** none


## Frequently asked questions

### Is Asun free?

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

### Is 中天安管 free?

中天安管 is free to download, with no in-app purchases.

### Do Asun or 中天安管 have ads?

Neither Asun nor 中天安管 shows ads.

### Which is updated more often, Asun or 中天安管?

Asun ships an update every 2 months, and 中天安管 every 10 months. Most recently, Asun was updated on November 7, 2026 and 中天安管 on November 7, 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.*