# 联强服务 vs HHKLock

The clearest difference is update cadence: 联强服务 at every 3 weeks against HHKLock's every 6 weeks. 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.

联强服务 ships an update every 3 weeks, HHKLock every 6 weeks. The most recent releases landed on September 28, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | 联强服务 | HHKLock |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 6 weeks |
| Size | 72 MB | 73 MB |
| Requires iOS | 11.0 | 11.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 9+ |
| Developer | [德州天正物业管理有限公司](https://appshunter.io/developer/1358193151) | [福建博创软件技术有限公司](https://appshunter.io/developer/1643063777) |

## What reviewers say

### 联强服务

[App page](https://appshunter.io/ios/app/id1358193152)

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

**In-app purchases:** none


### HHKLock

[App page](https://appshunter.io/ios/app/hhklock/id1643063445)

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

**In-app purchases:** none


## Frequently asked questions

### Is 联强服务 free?

联强服务 is free to download, with no in-app purchases.

### Is HHKLock free?

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

### Do 联强服务 or HHKLock have ads?

Neither 联强服务 nor HHKLock shows ads.

### Which is updated more often, 联强服务 or HHKLock?

联强服务 ships an update every 3 weeks, and HHKLock every 6 weeks. Most recently, 联强服务 was updated on September 28, 2026 and HHKLock on October 30, 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.*