# 中天智慧工地 vs 紫鸾

The clearest difference is iOS requirement: 中天智慧工地 at 11.0 against 紫鸾's 13.0. 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.

中天智慧工地 ships an update every 6 weeks, 紫鸾 monthly. The most recent releases landed on October 27, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | 中天智慧工地 | 紫鸾 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Monthly** |
| Size | 50 MB | 196 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [杭州智晗信息技术有限公司](https://appshunter.io/developer/1255811002) | [TSINGHUA UNIUDC CO.,LTD.](https://appshunter.io/developer/1390965092) |

## What reviewers say

### 中天智慧工地

[App page](https://appshunter.io/ios/app/id1616591271)

**Features:** macOS Compatibility

**In-app purchases:** none


### 紫鸾

[App page](https://appshunter.io/ios/app/id6467690309)

**In-app purchases:** none


## Frequently asked questions

### Is 中天智慧工地 free?

中天智慧工地 is free to download, with no in-app purchases.

### Is 紫鸾 free?

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

### Do 中天智慧工地 or 紫鸾 have ads?

Neither 中天智慧工地 nor 紫鸾 shows ads.

### Which is updated more often, 中天智慧工地 or 紫鸾?

中天智慧工地 ships an update every 6 weeks, and 紫鸾 monthly. Most recently, 中天智慧工地 was updated on October 27, 2026 and 紫鸾 on November 3, 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.*