It's easier than you think and you don't even have to lose your app data in the downgrade.
Android is, for the most part, an open platform. You can use the Google Play Store to install apps and games, or you can go off the reservation and install APKs on ...
Forget BlueStacks. You can use Android apps natively just like Windows apps.
Android devices are configured to prevent the installation of apps from sources other than the Google Play Store and the device manufacturer's store to enhance security. However, if you need to ...