# 中国联通 vs BDB_Link

The clearest difference is rating: 中国联通 at 2.5 against BDB_Link's 1.0. 中国联通 also leads on ratings volume (1.3K vs 1) and update cadence (every 3 weeks vs every 3 months). BDB_Link's advantage is iOS requirement (10.0 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.

中国联通 holds the better App Store score, 2.5 against 1.0. That said, the two scores are not equally well evidenced: 中国联通 has 1.3K ratings behind it against 1, so its average is the more settled of the two.

中国联通 ships an update every 3 weeks, BDB_Link every 3 months. The most recent releases landed on September 26, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | 中国联通 | BDB_Link |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.5 (1.3K ratings)](https://appshunter.io/ios/app/id416457422/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/bdb-link/id1599921113/reviews) |
| Number of ratings | **1.3K** | 1 |
| Positive reviews | 34.1% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 3 months |
| Monetization | — | Free |
| Size | 333 MB | 10 MB |
| Requires iOS | 13.0 | **10.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [China United Network Communications Corporation Limited](https://appshunter.io/developer/674392285) | [胜 邓](https://appshunter.io/developer/1368398791) |

## 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


### BDB_Link

[App page](https://appshunter.io/ios/app/bdb-link/id1599921113)

This utility app transforms your phone into a remote transmitter for unlocking, locking, and locating vehicles. It offers convenient control over your car's functions directly from your mobile device.

**Highlights:** Unlock vehicle, Lock vehicle, Locate vehicle, Phone as remote transmitter, Car control functions

**Features:** macOS Compatibility

**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 BDB_Link free?

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

### Which has better reviews, 中国联通 or BDB_Link?

中国联通 is rated higher. 中国联通 averages 2.5 out of 5 from 1.3K ratings, while BDB_Link averages 1.0 from 1 ratings.

### Do 中国联通 or BDB_Link have ads?

Neither 中国联通 nor BDB_Link shows ads.

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

中国联通 ships an update every 3 weeks, and BDB_Link every 3 months. Most recently, 中国联通 was updated on September 26, 2026 and BDB_Link on September 17, 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.*