The Courier Android SDK simplifies the process of implementing push notifications in mobile apps by handling token management, user state, and sending test notifications. The SDK provides tools to manage tokens, handle user state effectively, and send test notifications, making it easier for developers to streamline their workflow. To get started with the SDK, developers need an Android device, a Courier account, and a valid Firebase project. The SDK automates token management, storing and invalidating tokens as needed, allowing developers to focus on building their app without worrying about technicalities. With its user-friendly setup and integration process, the Courier Android SDK can help simplify push notification management for mobile apps built with Android.