Most of us Android phone users keep installing and trying different applications and games from the Google Play store on a regular basis. These applications are installed automatically and just appear on our phones when we click the install button. However, there is another way to install applications and games, and even live wallpaper on your phone without using an application store like Google Play. That's where APK or Android application Package files come into play.
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Anyone who has used an Android phone and likes to install lots of applications and games will likely have heard or read about APK files. The APK file extension is a special file format that works much like a standard EXE or executable file does on a Windows computer. It is an executable program file that installs an application on your Android smartphone.
These files are very easy to use, but you must first set up your phone to install apps from third party sources. There is an option for it in your phone settings, usually found on the security settings or applications. After you check that, you just need to copy the APK file to your memory card, and you're good to go.
However, the hard part is finding a reliable source for these files. You can not just download the APK file with the file extension from any website. Quite a few sites that do not run a proper antivirus check and verify the upload application files there. Some of this can easily be a virus or other malware that is designed to give someone else access to your phone's features such as a camera, a microphone, a photo gallery and a list of contacts, invade your privacy. As long as you download the APK file from a trusted source though, you should not have any problems.