# KeyLinker vs ckck

The clearest difference is review sentiment: ckck at 100% against KeyLinker's 30%. ckck also leads on rating (5.0 vs 2.3) and update cadence (every 4 weeks vs every 2 months). KeyLinker's advantage is ratings volume (49 vs 1). On price, ads, in-app purchases and monetization model there is nothing between them.

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

ckck holds the better App Store score, 5.0 against 2.3. That said, the two scores are not equally well evidenced: KeyLinker has 49 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 30% of KeyLinker's written reviews are positive against 100% of ckck's.

KeyLinker ships an update every 2 months, ckck every 4 weeks. The most recent releases landed on October 7, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | KeyLinker | ckck |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.3 (49 ratings)](https://appshunter.io/ios/app/keylinker/id1472490585/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/ckck/id6504851292/reviews)** |
| Number of ratings | **49** | 1 |
| Positive reviews | 30.2% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 4 weeks** |
| Monetization | Free | Free |
| Size | 38 MB | 9 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ShenZhen ZhiXu Technology Co., Ltd](https://appshunter.io/developer/1472490584) | [Shenzhen Qixiong Technology Co., Ltd.](https://appshunter.io/developer/1484600595) |

## 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


### ckck

[App page](https://appshunter.io/ios/app/ckck/id6504851292)

This utility app tests various functions of MFi Bluetooth controllers, including buttons, joysticks, directional pads, and triggers. It also performs polling rate tests to ensure optimal performance for gaming. Designed for gamers and enthusiasts, it provides detailed hardware diagnostics.

**Highlights:** Button testing, Joystick calibration, Directional pad checks, Trigger response analysis, Polling rate measurement, MFi Bluetooth controller support

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is KeyLinker free?

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

### Is ckck free?

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

### Which has better reviews, KeyLinker or ckck?

ckck is rated higher. KeyLinker averages 2.3 out of 5 from 49 ratings, while ckck averages 5.0 from 1 ratings.

### Do KeyLinker or ckck have ads?

Neither KeyLinker nor ckck shows ads.

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

KeyLinker ships an update every 2 months, and ckck every 4 weeks. Most recently, KeyLinker was updated on October 7, 2026 and ckck on October 6, 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.*