Go to an APK download site. In your web browser, either type in the name of the app you want to download followed by apk (e.g., "soundcloud apk"), or go to a website that you know hosts APK downloads. APKMirror, AppBrain, and AndroidAPKsFree are all reputable sites from which you can download APK files.How do I find an APK?
If you want to know where your apk files are stored, open a emulator and then go to. DDMS>File Explorer-> you can see a directory by name "data" -> Click on it and you will see a "app" folder. Your apks are stored there. In fact just copying a apk directly to the folder works for me with emulators.Can Chrome OS run APK?
ARC Welder is a Chrome extension that allows you to run APK files within the browser. It’s by far the easiest way to run APK files. The benefit is that you can run it on any device that can run Chrome.