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.

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.

Wondering how to download an APK file from the Play Store (and third-party sources)? All you need to do is follow our step-by-step guide.

By doing this, any ‘apk’ file can be installed on the smartphone that is not available or registered on Google Play. Go to this page on APK Mirror from your Android smartphone. Tap on Download ...