# DoorMaster vs QROPEN

The clearest difference is update cadence: QROPEN at every 2 weeks against DoorMaster's monthly. DoorMaster's advantage is iOS requirement (7.0 vs 15.6). 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.

DoorMaster ships an update monthly, QROPEN every 2 weeks. The most recent releases landed on September 30, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | DoorMaster | QROPEN |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (2 ratings)](https://appshunter.io/ios/app/doormaster/id1063018521/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 20.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 2 weeks** |
| Monetization | Free | — |
| Size | 14 MB | 6 MB |
| Requires iOS | **7.0** | 15.6 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [宏根 张](https://appshunter.io/developer/1063018520) | [勇 唐](https://appshunter.io/developer/1531655037) |

## What reviewers say

### DoorMaster

[App page](https://appshunter.io/ios/app/doormaster/id1063018521)

This app transforms your mobile phone into a smart security device, replacing traditional keys and door cards with Bluetooth technology. It offers a secure and convenient way to unlock doors, providing an advanced technological experience.

**Highlights:** Bluetooth smart security, Replaces keys and door cards, Mobile phone unlocking, Advanced technology experience, Secure access

**Features:** macOS Compatibility

**In-app purchases:** none


### QROPEN

[App page](https://appshunter.io/ios/app/qropen/id1540717342)

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

**In-app purchases:** none


## Frequently asked questions

### Is DoorMaster free?

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

### Is QROPEN free?

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

### Do DoorMaster or QROPEN have ads?

Neither DoorMaster nor QROPEN shows ads.

### Which is updated more often, DoorMaster or QROPEN?

DoorMaster ships an update monthly, and QROPEN every 2 weeks. Most recently, DoorMaster was updated on September 30, 2026 and QROPEN on September 29, 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.*