Exactly what is the APK File Extension About?
Many people Android phone users keep installing and seeking different applications and games from your Google Play store frequently. These applications are set up automatically and just show up on our phones if we go through the install button. However, there is a different way to install applications and games, and even live wallpaper on your phone without resorting to a credit application store like Google Play. This is where APK or Android application Package files come up.
Whoever has used an Android phone and wants to install a great deal of applications and games will probably have heard or learn about APK files. The APK file extension is a special extendable that works well comparable to a regular EXE or executable file does with a Windows computer. It becomes an executable program file that installs a credit card applicatoin on your Android smartphone. 
These files are very simple to operate however, you first must setup your phone to install applications from third-party sources. There's an option for that in your phone's settings, usually located in the security or applications settings sections. As soon as you make sure that, you simply need to copy an APK file to your sd card, and you're fine.
However, the tricky part is obtaining a reliable source of those files. You can not just download files with the APK file extension through the website. Several websites which don't run proper antivirus checks and verify the application form files uploaded there. A few of these can easily be viruses or other malware built to give another individual usage of your phone's features much like the camera, microphone, your picture gallery and contacts lists, breaching your privacy. If you download APK files from reliable sources though, you must not have any problems.
Usually, you can find discontinued applications or live wallpapers like Flappy Bird online in the form of APK files that other people that use the app have uploaded to websites. They may be a good source of custom applications too that users generated for their particular use. Those simple, small, and mostly ad free applications are wonderful to incorporate some new features in your phone such as a flashlight or perhaps RSS reader. However, you need to use caution by what file we download and from which because not every person will make good quality applications and some can even damage the device if run on an incompatible device.
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