Couchbase Mobile provides a versatile platform for offline-first applications, with various synchronization patterns between Couchbase Lite and Sync Gateway. The blog post outlines several best practices for handling data sync, including maintaining up-to-date data while apps run in the background, purging data post-sync to manage local storage, and managing document expiration on disconnected clients. It also discusses controlling synchronization priorities and filtering which documents are synced to optimize data flow and ensure relevant data is prioritized during initial app startup. These strategies enhance app performance and user experience across different platforms like iOS, Android, and Windows, while also addressing governance and data management concerns. The post concludes by inviting readers to engage with the Couchbase community for further insights and support.