How to Look for Free APK Files
Android APK, also referred to as application package files, are identified together with the extension ".apk". This is also the extension of JAR. If you have a gadget that is run on Android system, you will find out that we now have already APK in it meaning you are able to install and distribute apps designed for Android system.
It is important so that you can have in mind the basics about these files. Actually, most of the Android users aren't fully alert to the value and implication of APK files. While it is true that sometimes it is possible to experience not fiddling much about APK files, it will still be quite beneficial to find out about it just in case you would need it in the foreseeable future when you want to download more apps for your Android device. 
Important info About These Files. APK files already are included in the applications that you get in the Android Market. Usually, your Android device will automatically install the APK. However, when the application that you've is just not in the Android Market, you have to make certain you do the installation manually inside your device. This is necessary so that your apps will run successfully with no hitch.
How are APK files installed? Normally, APK files are installed automatically particularly if the apps come from the Android market. Otherwise, you only need to save or copy the file within your Android gadget's memory. Once you have finished installing, you have to make sure that you manually update the file by exporting the newest file, and duplicate for the Android device's memory again.
Where can free APK files be seen? You can use a highly reliable internet search engine for example Google to be able to search for free files of games, apps, and widgets for all of your gadgets running 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 "site:xda-developers.com apk download". Obviously, you may also try the Android Market, along with other websites specializing in promoting Android based applications. Always remember that there are particular rules and regulations that govern apps ahead of approval and release on the market. There are particular criteria and requirements that developers have to satisfy. Remember that alternative party apps might still require manual installing of APK files.
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