KeyLinker vs SerafimPlay
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
KeyLinker
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.
- Modify key parameters
- Customize lamplight settings
- Adjust vibration feedback
- Configure joystick and trigger
- Simultaneous device connection
Read full descriptionHide full description
This app is used by handles that support keylinker protocol, which can be set to modify the parameters of more than ten functions of the handle, such as keys, lamplight, vibrations, joystick and trigger. Users can modify the parameters of the handle according to their habits. The flexible parameter settings greatly enhance the handle experience.The handle can be connected to this app and other equipment at the same time, and can be used at the same time
SerafimPlay
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.
- Bluetooth connection
- Connects input devices
- Mobile gaming utility
- Device and phone pairing
Read full descriptionHide full description
Serafim Play is an utility for connecting input devices for mobile games. It features Bluetooth conncection between devices and phones. If you have any quetions, please leave a comment or email to us. sales@serafim-tech.com
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | KeyLinker | SerafimPlay |
|---|---|---|
| Price | Free | Free |
| Rating | 2.3 (49 ratings) | 2.7 (10 ratings) — better |
| Positive reviews | 30.2% of reviews | 37.5% of reviews — better |
| Number of ratings | 49 — better | 10 |
| Update frequency | Every 2 months | Monthly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 13.0 | 13.0 |
| Further details — not scored | ||
| Size | 38 MB | 85 MB |
| Age rating | 4+ | 4+ |
| Developer | ShenZhen ZhiXu Technology Co., Ltd | Serafim Technologies Inc. |
Customer experience
KeyLinker
SerafimPlay
In-app purchases
KeyLinker
No in-app purchases
SerafimPlay
No in-app purchases
