An APK file allows you to install an app without using any third-party app like the Google Play Store. Here we will explain what it is, and how to download and install it. APK files are files you can ...

If you own multiple Android devices, you shouldn't have to buy multiple copies of your apps. Fortunately, the Android Market makes it easy to install all of your paid apps on all of your devices ...

Google removed the install from "unknown sources" setting in Android 8.0 Oreo. Here's how you can still sideload and install apps without it.

On the phone I tried this on (a Samsung using Android 2.1 ) the first item on the menu says 'Unknown Sources: Allow Install of non-Market application' check the box next to it.

Recently flashed a custom ROM and lost access to the Play Store? Install GApps on your Android device to restore Google services.