React Native allows developers to create Android applications that appear native using JavaScript, and in this tutorial, users learn to integrate Couchbase Lite for data synchronization and persistence. The guide walks through setting up a React Native project with Android Studio, configuring Couchbase components, and building a simple app to save and sync documents with Sync Gateway. Key steps include creating a new Android project, setting up dependencies with Gradle, integrating React Native, and implementing basic UI components and API functions for data management. Additionally, the tutorial covers running the app on an Android emulator and using Sync Gateway for replication, with instructions on monitoring document synchronization via the Admin UI. It concludes with suggestions for further development, such as adding custom queries and user authentication, while offering resources for debugging and community support.