The Courier Android SDK simplifies the process of managing push notification device tokens, tracking user interactions with notifications, and streamlining how applications request and check push notification permissions. The SDK automates token management, ensuring data consistency and providing a more robust system for push notification delivery. It also allows developers to track user status with ease, enabling them to tailor their app's user experience based on user behavior. The Courier Android SDK is designed to streamline push notification management, making it easier to focus on building great app experiences for users.