# SmartCtrl vs key  door

The clearest difference is rating: SmartCtrl at 2.3 against key  door's 1.0. SmartCtrl also leads on update cadence (every 3 weeks vs every 3 months) and iOS requirement (13.0 vs 15.0). key  door's advantage is ads (none vs shown) and monetization model (free vs ad-supported). On price, review sentiment, ratings volume and in-app purchases there is nothing between them.

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

SmartCtrl holds the better App Store score, 2.3 against 1.0. Both are backed by a comparable volume of ratings — 3 and 2 respectively. Written reviews split almost evenly too, at 0% and 0% positive.

SmartCtrl ships an update every 3 weeks, key  door every 3 months. The most recent releases landed on September 26, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | SmartCtrl | key  door |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.3 (3 ratings)](https://appshunter.io/ios/app/smartctrl/id1457979705/reviews)** | [1.0 (2 ratings)](https://appshunter.io/ios/app/key-door/id1481830717/reviews) |
| Number of ratings | **3** | 2 |
| Positive reviews | 0.0% of reviews | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 3 weeks** | Every 3 months |
| Monetization | Ad-supported | **Free** |
| Size | 309 MB | 4 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 12+ | 4+ |
| Developer | [海银智慧(厦门)科技有限公司](https://appshunter.io/developer/1591382321) | [胜 邓](https://appshunter.io/developer/1368398791) |

## What reviewers say

### SmartCtrl

[App page](https://appshunter.io/ios/app/smartctrl/id1457979705)

This app connects to smart security hardware using wireless technology to provide constant safety monitoring. It also offers business insights and on-site service matching based on device location.

**Highlights:** Smart security hardware connection, Wireless IoT technology, Comprehensive alarm mode, Business community insights, On-site service matching

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

**In-app purchases:** none


### 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


## Frequently asked questions

### Is SmartCtrl free?

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

### Is key  door free?

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

### Which has better reviews, SmartCtrl or key  door?

SmartCtrl is rated higher. SmartCtrl averages 2.3 out of 5 from 3 ratings, while key  door averages 1.0 from 2 ratings.

### Do SmartCtrl or key  door have ads?

SmartCtrl shows ads; key  door does not.

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

SmartCtrl ships an update every 3 weeks, and key  door every 3 months. Most recently, SmartCtrl was updated on September 26, 2026 and key  door on September 14, 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.*