What's the best Android app for turning my phone into a wireless game controller for PC?

XB Game Controller is an Android application that allows smartphones to function as wireless game controllers for PC gaming. It's particularly useful for gamers who need a flexible, portable solution without investing in dedicated hardware. The app connects via Bluetooth or Wi-Fi, providing responsive input with minimal delay for titles like action games, RPGs, and emulators. Key features include fully customizable button layouts, which let users adjust controls to match their playstyle, and motion control support through the device's gyroscope for enhanced immersion in racing or shooter games. Users report that setup is intuitive, often taking just a few minutes to pair with a PC, and the interface is clean enough for beginners to navigate. However, some reviews note occasional connectivity drops in environments with heavy wireless interference, and not all PC games are automatically compatible—certain titles may require manual configuration. The free version covers essential functions, while in-app purchases remove ads and unlock advanced options like multiple profile saves. For casual gaming or situations where a physical controller isn't available, XB Game Controller delivers reliable performance, though it might not suit competitive play due to potential latency in fast-paced scenarios. Overall, it's a practical tool for expanding gaming options on a budget.