# 자동중문 컨트롤러 vs 키엔

The clearest difference is iOS requirement: 자동중문 컨트롤러 at 12.0 against 키엔's 15.0. On price, update cadence, ads 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.

Both ship on a similar rhythm, roughly every 4 months. The most recent releases landed on October 12, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | 자동중문 컨트롤러 | 키엔 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | Every 4 months |
| Size | 53 MB | 5 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [KOO YEUN CHAE](https://appshunter.io/developer/1654457881) | [(주)필드키친](https://appshunter.io/developer/1789737457) |

## What reviewers say

### 자동중문 컨트롤러

[App page](https://appshunter.io/ios/app/id6466588596)

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

**In-app purchases:** none


### 키엔

[App page](https://appshunter.io/ios/app/id6740397487)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 자동중문 컨트롤러 free?

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

### Is 키엔 free?

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

### Do 자동중문 컨트롤러 or 키엔 have ads?

Neither 자동중문 컨트롤러 nor 키엔 shows ads.

### Which is updated more often, 자동중문 컨트롤러 or 키엔?

자동중문 컨트롤러 ships an update every 4 months, and 키엔 every 4 months. Most recently, 자동중문 컨트롤러 was updated on October 12, 2026 and 키엔 on October 1, 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.*