KeyLinker vs Cosmox Engine
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
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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
Cosmox Engine
Customize your gaming controller with advanced features like rapid fire, button mapping, and macro programming. Adjust joystick sensitivity, vibration, and trigger travel for a more immersive gaming experience. The app offers a user-friendly interface and multi-language support.
- Rapid Fire/Mapping/Macro Functions
- Vibration/Joystick/Trigger Adjustment
- Personalized Gaming Needs
- Enhanced Immersion
- User-Friendly Interface
- Multi-Language Support
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The X-engine app is designed to assist players in better controlling and adjusting their gaming controllers, enhancing the actual gaming experience. This app supports the following features: 1、Rapid Fire/Mapping/Macro Functions: Customize the M1~M4 back buttons on the controller for rapid firing, button mapping, and macro programming, enabling quicker and more precise operations to meet your personalized gaming needs. 2、Vibration/Joystick/Trigger Adjustment: Quickly set parameters such as joystick sensitivity, vibration intensity, and trigger button travel for the controller. This allows players to better feel the game environment and characters, enhancing the overall sense of presence and immersion in the game. 3、User-Friendly Interface: The app features a clean and visually appealing UI, making it simple, intuitive, and easy to navigate. 4、Multi-Language Support: Added support for multiple languages, helping us provide more convenient, practical, and satisfactory services to global users.
Screenshots
Verdict
The clearest difference is rating: KeyLinker at 2.3 against Cosmox Engine's 1.0. KeyLinker also leads on ratings volume (49 vs 1). Cosmox Engine's advantage is update cadence (every 3 weeks vs every 2 months) and iOS requirement (9.0 vs 13.0). On price, ads, in-app purchases and monetization model 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.
KeyLinker holds the better App Store score, 2.3 against 1.0. 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.
KeyLinker ships an update every 2 months, Cosmox Engine every 3 weeks. The most recent releases landed on October 7, 2026 and October 3, 2026 respectively.
| Parameter | KeyLinker | Cosmox Engine |
|---|---|---|
| Price | Free | Free |
| Rating | 2.3 (49 ratings) — better | 1.0 (1 ratings) |
| Positive reviews | 30.2% of reviews | — |
| Number of ratings | 49 — better | 1 |
| Update frequency | Every 2 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 13.0 | 9.0 — better |
| Further details — not scored | ||
| Size | 38 MB | 32 MB |
| Age rating | 4+ | 4+ |
| Developer | ShenZhen ZhiXu Technology Co., Ltd | Cosmox Technology(Shenzhen) Co.,Ltd. |
Customer experience
KeyLinker
Cosmox Engine
In-app purchases
KeyLinker
No in-app purchases
Cosmox Engine
No in-app purchases









