Couchbase Mobile 2.0 introduces NoSQL JSON Document Store capabilities to iOS, Android, and .Net platforms, enabling the creation of mobile applications with offline-only and offline-first functionalities. It offers flexible deployment options, allowing Couchbase Lite to be used as a standalone embedded database within mobile apps or in conjunction with a Sync Gateway for data synchronization between mobile clients and potentially with a Couchbase Server for cloud data persistence. The accompanying tutorial demonstrates how to use Couchbase Lite 2.0 in standalone mode within a Swift app, offering an alternative to SQLite or Core Data, by guiding users through database operations such as creating, updating, and deleting documents within a simple "User Profile" app. The tutorial aims to provide a foundational understanding of using Couchbase Lite as a local data store in iOS apps, with further tutorials promised to expand on its functionalities.