# KeyLinker vs SerafimPlay

The clearest difference is rating: SerafimPlay at 2.7 against KeyLinker's 2.3. SerafimPlay also leads on update cadence (monthly vs every 2 months). KeyLinker's advantage is ratings volume (49 vs 10). On price, review sentiment, 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.

SerafimPlay holds the better App Store score, 2.7 against 2.3. Both are backed by a comparable volume of ratings — 49 and 10 respectively. Written reviews point the same way: 30% of KeyLinker's written reviews are positive against 38% of SerafimPlay's.

KeyLinker ships an update every 2 months, SerafimPlay monthly. The most recent releases landed on October 7, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | KeyLinker | SerafimPlay |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.3 (49 ratings)](https://appshunter.io/ios/app/keylinker/id1472490585/reviews) | **[2.7 (10 ratings)](https://appshunter.io/ios/app/serafimplay/id1473110730/reviews)** |
| Number of ratings | **49** | 10 |
| Positive reviews | 30.2% of reviews | **37.5% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Monthly** |
| Monetization | Free | Free |
| Size | 38 MB | 85 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ShenZhen ZhiXu Technology Co., Ltd](https://appshunter.io/developer/1472490584) | [Serafim Technologies Inc.](https://appshunter.io/developer/847342450) |

## 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


### SerafimPlay

[App page](https://appshunter.io/ios/app/serafimplay/id1473110730)

Connect your input devices to your mobile phone for gaming. This utility app facilitates Bluetooth connections between your devices and phone, enhancing your mobile gaming experience.

**Highlights:** Bluetooth connection, Connects input devices, Mobile gaming utility, Device and phone pairing

**In-app purchases:** none


## Frequently asked questions

### Is KeyLinker free?

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

### Is SerafimPlay free?

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

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

SerafimPlay is rated higher. KeyLinker averages 2.3 out of 5 from 49 ratings, while SerafimPlay averages 2.7 from 10 ratings.

### Do KeyLinker or SerafimPlay have ads?

Neither KeyLinker nor SerafimPlay shows ads.

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

KeyLinker ships an update every 2 months, and SerafimPlay monthly. Most recently, KeyLinker was updated on October 7, 2026 and SerafimPlay on October 5, 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.*