APK files are easy to download on android. You have to enable unknown sources from settings. After that, you can download the app from APK files. You should be aware of some concerns.
Checking APK Files For Safety & Security
You can download the app from the virus total website as this website is safe for downloading. You can check the safety from the hash droid app. You can also check the safety of the app from the app scan.
What Are APK Files Used For?
It is used to download the apps on android. This is similar to downloading the apps on Windows 10. When you open the APK file on your device then it provides the information about itself.
How Are APK Files Created?
If you download the app from the google play store then it automatically installs the APK for you. There are many other ways to download apps. When you download the APK then you usually find the filenames.