# KeyLinker vs YUYIU

The clearest difference is update cadence: KeyLinker at every 2 months against YUYIU's every 4 months. KeyLinker also leads on iOS requirement (13.0 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.

KeyLinker ships an update every 2 months, YUYIU every 4 months. The most recent releases landed on October 16, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | KeyLinker | YUYIU |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.3 (52 ratings)](https://appshunter.io/ios/app/keylinker/id1472490585/reviews)** | — |
| Number of ratings | **52** | — |
| Positive reviews | 30.2% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 4 months |
| Monetization | Free | — |
| Size | 38 MB | 8 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [ShenZhen ZhiXu Technology Co., Ltd](https://appshunter.io/developer/1472490584) | [云宝 蒋](https://appshunter.io/developer/1788515639) |

## What reviewers say

### KeyLinker

[App page](https://appshunter.io/ios/app/keylinker/id1472490585)

Customize and enhance your controller experience with this utility app. Modify parameters for keys, lighting, vibration, and more to suit your personal preferences. Enjoy a more personalized and responsive gaming setup.

**Highlights:** Modify key parameters, Customize lamplight settings, Adjust vibration feedback, Configure joystick and trigger, Simultaneous device connection

**Features:** Vision Pro support

**In-app purchases:** none


### YUYIU

[App page](https://appshunter.io/ios/app/yuyiu/id6740307326)

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

**In-app purchases:** none


## Frequently asked questions

### Is KeyLinker free?

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

### Is YUYIU free?

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

### Do KeyLinker or YUYIU have ads?

Neither KeyLinker nor YUYIU shows ads.

### Which is updated more often, KeyLinker or YUYIU?

KeyLinker ships an update every 2 months, and YUYIU every 4 months. Most recently, KeyLinker was updated on October 16, 2026 and YUYIU on September 30, 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.*