iOS Data Persistence: The Big Picture

This article provides a comprehensive overview of iOS data persistence, covering various technologies and frameworks for saving data in iOS apps. It explores local options like UserDefaults, Property Lists, Swift's Encodable/Decodable protocols, SQLite, Core Data, and Realm Database, as well as remote solutions such as CloudKit, Realm Platform, and Firebase. The article also discusses document-based applications and integration with the iOS Files app. It aims to help developers make informed decisions about data storage strategies for their iOS apps, with a focus on setup requirements and practical coding experiences.