Swift introduced versatile value types into the iOS and Cocoa development domains. They're lightweight, fast, safe, enforce immutability and much more. However, as soon as the need for CoreData in a project manifests itself, we have to go back to reference types and @objc. CoreValue is a lightweight wrapper framework around Core Data. It takes care of boxing value types into Core Data objects and unboxing Core Data objects into value types. It also contains simple abstractions for easy querying, updating, saving, and deleting.