Couchbase Lite, a full-featured NoSQL database, can be utilized for building secure offline applications on mobile devices using the Ionic Native Offline Storage plugin. This approach supports an offline-first architecture, providing users with a seamless experience regardless of connectivity. The article guides developers through the process of implementing Create, Read, Update, and Delete (CRUD) operations within an Ionic application, focusing on a tea category management app as an example. By using Ionic Native, developers can abstract data storage logic into a service class, enhancing maintainability and future scalability, such as integrating cloud-based storage. The guide emphasizes architectural best practices by decoupling the data storage mechanism, allowing the app to respond dynamically to database changes and providing a cross-platform solution without concern for specific mobile platforms. Additionally, the article encourages developers to explore the full potential of Ionic Native for enhancing application development and user experience.