lumia 520 facebook download - Android application package file commonly known as an APK (.apk) file is the format of installable files on Android platform. Every application you have installed or want to install on your Android device has the .apk extension or file format. You can install applications from the Google Play Store or even the Amazon Google Play App Store but there are also methods that let you install applications directly on your Android device without having to install any application Market. Even installing Amazon App Store on a non-Kindle device requires you to install the APK file for the Google Play App Store directly.
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In the Android world, directly installing an APK is also called βside loadingβ. There are numerous reasons why you should know about installing apk files. Not all manufacturers support Google Play Store on their Android devices, in that case you have to install apps via side loading.