Android APK, also referred to as application package files, are identified with the extension “.apk”. This is also the extension of JAR. If you have a gadget that runs on Android system, you will find out that there are already APK in it which means that you can set up and distribute apps made for Android system.It is essential for you to know the fundamentals about these files. Really, most of the Android users are not fully aware of the importance and implication of APK files. Whilst it is true that occasionally you can reside with not fiddling much about APK files, it would still be fairly useful to learn about it just in case you would require it in the future when you want to download more apps for your Android device.Important Information About These FilesAPK files are currently integrated in the applications that you get from the Android Market. Generally, your Android device will automatically set up the APK. However, if the application that you have is not from the Android Marketplace, you need to make certain that you install it manually in your device. This step is required so that your apps will run successfully without any hitch.How are APK files installed?Normally, APK files are installed automatically particularly if the apps are from the Android market. Otherwise, you just require to save or copy the file in your Android gadget’s memory. Once you have completed installing, you have to make certain that you manually update the file by exporting the new file, and copy to the Android device’s memory once more.Exactly where can free APK files be discovered?You can use a extremely dependable search engine such as Google so that you can search for totally free files of games, apps, and widgets for all your gadgets that run on Android system. Use “inurl:htm -inurl:html intitle:”index of” apk”, “inurl:htm -inurl:html intitle:”index of” apk games”, or inurl:htm -inurl:html intitle:”index of” apk angry birds”. You can also key in “website:xda-developers.com apk download”. Of course, you can also attempt the Android Market, and other web sites that specialize in advertising Android based applications. Usually remember that there are certain rules and regulations that govern apps prior to approval and release in the market. There are certain criteria and requirements that developers need to satisfy. Note that third party apps might still ask for manual installation of APK files.We give apk mirror; contact us to learn much more.