I believe you’re referring to this thread:
Someone recently attempted to run Infinite Flight on PC, but it appears to be unplayable, as Alex mentioned above.
The Infinite Flight development team has stated that there are no plans to release an official PC version of the simulator. The application is designed and optimized specifically for mobile platforms, and while a PC version exists for internal development purposes, it is not intended for public release.
If you’re interested in using external controls such as a yoke or joystick, you might consider using LiveFlight Connect, which allows you to connect such peripherals to Infinite Flight running on a mobile device