Searching for a "Wi-Fi Key Hacker" on Android often leads to fake apps that are packed with excessive advertisements or designed to steal your data. Most legitimate methods for recovering Wi-Fi keys on Android involve built-in system features rather than third-party "hacking" software. How to View Saved Wi-Fi Passwords (No Root)
If you are already connected to a network or have it saved, you can view the password directly through your Android settings. Wifi Key Without Root - Apps on Google Play