The text discusses the use of Telerik NativeScript, a cross-platform development framework that enables building native Android and iOS applications using JavaScript without relying on web views, thus ensuring excellent performance. The text highlights the lack of a good data storage solution in NativeScript apps until the introduction of a Couchbase Lite plugin, which allows the use of NoSQL databases and synchronization of data across devices through the Couchbase Sync Gateway. The guide provides step-by-step instructions on creating a simple name list application with features like data synchronization, application logic, and UI design, emphasizing the integration of Couchbase for data management. The text also addresses the storage of databases on mobile devices, noting that databases are kept in a protected area, accessible only through rooting or jailbreaking.