# 中国联通 vs 51车联

The clearest difference is iOS requirement: 中国联通 at 13.0 against 51车联's 15.0. 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.

中国联通 ships an update every 3 weeks, 51车联 every 4 weeks. Both last shipped on October 29, 2026.

## The numbers

| Metric | 中国联通 | 51车联 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.5 (1.3K ratings)](https://appshunter.io/ios/app/id416457422/reviews)** | — |
| Number of ratings | **1.3K** | — |
| Positive reviews | 37.1% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 4 weeks |
| Size | 333 MB | 74 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [China United Network Communications Corporation Limited](https://appshunter.io/developer/674392285) | [深圳市卓联启航科技有限公司](https://appshunter.io/developer/1266211236) |

## 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


### 51车联

[App page](https://appshunter.io/ios/app/51/id1266212518)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is 中国联通 free?

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

### Is 51车联 free?

51车联 is free to download, with no in-app purchases.

### Do 中国联通 or 51车联 have ads?

Neither 中国联通 nor 51车联 shows ads.

### Which is updated more often, 中国联通 or 51车联?

中国联通 ships an update every 3 weeks, and 51车联 every 4 weeks. Most recently, 中国联通 was updated on October 29, 2026 and 51车联 on October 29, 2026.

---

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