Not all apps are compatible. Patching can cause some apps to crash or fail to open.
: Modifying system-level files or using virtual environments can expose your data. Only download the APK from the Official Developer Site.
The tool decompiles an APK, applies the desired patches (such as removing ads or bypassing license checks), and then recompiles and resigns the app. The user must then uninstall the original app and install the modified version.