# 锁掌柜/QRMaster vs 智能解锁系统

The clearest difference is update cadence: 锁掌柜/QRMaster at every 3 weeks against 智能解锁系统's every 2 months. 智能解锁系统's advantage is iOS requirement (9.0 vs 12.0). 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.

锁掌柜/QRMaster ships an update every 3 weeks, 智能解锁系统 every 2 months. The most recent releases landed on October 26, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | 锁掌柜/QRMaster | 智能解锁系统 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Size | 85 MB | 5 MB |
| Requires iOS | 12.0 | **9.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [GuangZhouChangLianInformationTechnologyCompany](https://appshunter.io/developer/977124142) | [tieta](https://appshunter.io/developer/1095085261) |

## What reviewers say

### 锁掌柜/QRMaster

[App page](https://appshunter.io/ios/app/qrmaster/id979781966)

**Features:** macOS Compatibility

**In-app purchases:** none


### 智能解锁系统

[App page](https://appshunter.io/ios/app/id1528677277)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 锁掌柜/QRMaster free?

锁掌柜/QRMaster is free to download, with no in-app purchases.

### Is 智能解锁系统 free?

智能解锁系统 is free to download, with no in-app purchases.

### Do 锁掌柜/QRMaster or 智能解锁系统 have ads?

Neither 锁掌柜/QRMaster nor 智能解锁系统 shows ads.

### Which is updated more often, 锁掌柜/QRMaster or 智能解锁系统?

锁掌柜/QRMaster ships an update every 3 weeks, and 智能解锁系统 every 2 months. Most recently, 锁掌柜/QRMaster was updated on October 26, 2026 and 智能解锁系统 on October 25, 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.*