A Super Easy Way to Extract APK Files from an APP
Wish I had discovered this method before. Would have saved me quite a few hours of research and fiddling. No root required.
Download and install
FX File Explorer from the Play Store to the Android device on which the app whose apk file you wish to extract resides.
https://play.google.com/store/apps/d...xtapp.fx&hl=en
In the Home screen of the FX app, you will find an icon labeled Apps. Open it up.
You will be able to choose from User-Installed Apps and System Apps. In this case, you would select System Apps. Open it up.
Navigate to the App you are interested in. In this case, O Reader.
Although the package name and path are listed there, you don't need to bother with that. Instead, switch to the "Actions" tab in the status bar. There, you will be given a number of options which include "Copy APK". And, indeed, you will discover that "O Reader" is in fact a version of "AlReader".
You can then copy the file and paste it to the main FX storage area from which you can retrieve it and copy it via your computer to sideload and install on another device. Super simple and no root required.