APK file extension

Android Package File

Files with the extension .APK are package files associated with 'Android' a software platform and operating system developed by 'Google' and 'The Open Handset Alliance'.

The .APK package file usually contains a collection of .DEX files (Android program files) that operate as a single application file for use with the Android platform.

The .APK file is a compressed collection of a 'Androidmanifest.xml' file.

Android is a software stack for mobile devices that includes an operating system, middleware and key applications.