Android Studio is the default development console (integrated development environment, or IDE) for Android. It comes with a bunch of tools to help developers make apps and games specifically for Android. As it turns out, there is also a built-in emulator that you can use to test out your app or game. The setup is rather complicated so it won’t appeal to everyone but it is by far the fastest and most feature-rich option on this list. You can run vanilla Android, download apps from the Google Play Store as you normally would, add custom launchers and keyboards, and emulate any size or form-factor device. You can even try out foldable devices!