Yes. The Windows companion app is a free download and the phone app is free on both Google Play and the App Store as "Gamepad Pro - Remote for PC". No account, no subscription.
Anything that supports an Xbox 360 / XInput controller — which is nearly every PC game. Windows sees a real Xbox 360 pad through the ViGEmBus driver (the same technology DS4Windows uses), so Steam, emulators, and Game Pass titles treat it as genuine hardware.
Input travels as fixed 20-byte UDP packets over your own Wi-Fi, typically adding just a few milliseconds on a normal home network. Your controller input goes phone to PC and nowhere else.
Windows 10 or 11 (64-bit) on the PC and an Android phone or iPhone on the same Wi-Fi network. The installer sets up everything: the app, the ViGEmBus virtual gamepad driver, and a firewall rule for UDP port 7777.
No — the installer is EV code-signed, so SmartScreen recognizes the publisher. If your firewall asks, allow UDP port 7777 on your private network (the setup wizard adds this rule automatically).
The Windows app sends a small anonymous launch ping (a random ID and event name) so we can count active installs, and downloads are counted by GitHub. Your controller input never leaves your Wi-Fi — it goes phone to PC and nowhere else.
Yes. Trackpad mode moves the PC cursor with two-finger scrolling and pinch-to-zoom, and you can type on the PC using your phone's keyboard — handy for couch browsing between games.
On Android it's on Google Play as "Remote Gamepad for PC"; on iPhone it's on the App Store as "Gamepad Pro - Remote for PC". Search for it or use the store buttons on this page. Free, no account needed.