Similar to Android home screen launchers, Android Things supports the concept of home, and it is defined the same way. This is the application that will run when the device boots. We will see how this is declared later in the chapter when we explore the default project of Android Things.

An IoT device will usually have a single purpose, in contrast with mobile phones that have multiple apps that can be launched. That single purpose is what the Home application does.

While developing, you can launch apps in the same way you can on Android phones, also having them declared on the Manifest. This is useful for quickly testing some ideas, especially if you are just playing around with simple apps and do not want them to become the home app, but keep in mind that you won't have the ability to launch them in any other way.