# key  door vs STJ79

key  door and STJ79 are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

key  door ships an update every 3 months, STJ79 every 4 months. The most recent releases landed on September 14, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | key  door | STJ79 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (2 ratings)](https://appshunter.io/ios/app/key-door/id1481830717/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 4 months |
| Monetization | Free | — |
| Size | 4 MB | 14 MB |
| Requires iOS | **15.0** | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [胜 邓](https://appshunter.io/developer/1368398791) | [亚男 杨](https://appshunter.io/developer/1485381560) |

## What reviewers say

### key  door

[App page](https://appshunter.io/ios/app/key-door/id1481830717)

This application allows users to remotely control rolling shutter doors, including raising, lowering, and locking them. It provides a convenient way to manage access and security for your property.

**Highlights:** Control rolling shutter door, Raise door function, Lower door function, Lock door function, Remote access

**In-app purchases:** none


### STJ79

[App page](https://appshunter.io/ios/app/stj79/id1485381561)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is key  door free?

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

### Is STJ79 free?

STJ79 is free to download, with no in-app purchases.

### Do key  door or STJ79 have ads?

Neither key  door nor STJ79 shows ads.

### Which is updated more often, key  door or STJ79?

key  door ships an update every 3 months, and STJ79 every 4 months. Most recently, key  door was updated on September 14, 2026 and STJ79 on October 4, 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.*