# 中国联通 vs 工程相机

The clearest difference is in-app purchases: 中国联通 at none against 工程相机's 3. 工程相机's advantage is iOS requirement (11.0 vs 13.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. 工程相机 sells 3 in-app purchases, starting at $4.99 per 7 days. 中国联通 asks for nothing beyond the download.

中国联通 ships an update every 3 weeks, 工程相机 every 5 weeks. The most recent releases landed on September 26, 2026 and September 15, 2026 respectively.

## The numbers

| Metric | 中国联通 | 工程相机 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.5 (1.3K ratings)](https://appshunter.io/ios/app/id416457422/reviews)** | — |
| Number of ratings | **1.3K** | — |
| Positive reviews | 34.1% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 5 weeks |
| Size | 333 MB | 89 MB |
| Requires iOS | 13.0 | **11.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [China United Network Communications Corporation Limited](https://appshunter.io/developer/674392285) | [畅 肖](https://appshunter.io/developer/1759891431) |

## What reviewers say

### 中国联通

[App page](https://appshunter.io/ios/app/id416457422)

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 👍 Convenient app
- 🚀 Fast and responsive
- 💡 Comprehensive functionality

**What reviewers complain about**

- 🐛 Frequent crashes
- 🔋 High battery consumption
- 📢 Too many ads and promotions
- 🤯 Confusing and cluttered UI
- 🔒 Privacy concerns

**Reported bugs**

- Login issues and authentication problems
- Compatibility problems with newer OS versions
- Inconsistent performance across devices

**Requested features**

- Add English language support
- Improve search and navigation
- Provide more detailed account information
- Implement dark mode option


### 工程相机

[App page](https://appshunter.io/ios/app/2026/id6670169436)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 周会员 | $4.99 | per 7 days |
| 促销会员 | $4.99 | per 7 days |
| 永久会员 | $24.99 | one-time |


## Frequently asked questions

### Is 中国联通 free?

中国联通 is free to download, with no in-app purchases.

### Is 工程相机 free?

工程相机 is free to download, with in-app purchases available.

### Do 中国联通 or 工程相机 have ads?

Neither 中国联通 nor 工程相机 shows ads.

### Which is updated more often, 中国联通 or 工程相机?

中国联通 ships an update every 3 weeks, and 工程相机 every 5 weeks. Most recently, 中国联通 was updated on September 26, 2026 and 工程相机 on September 15, 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.*