APK (Android Package Kit): The standard file format for Android apps. It contains all the necessary files for an app to be installed on an Android device.

XAPK: An extended APK format that includes additional data files (like OBB files) required for larger apps or games.

• Access to new features before official release
• Install apps that are region-locked
• Install apps when Google Play Store is not available
• Access to older versions of apps