Cadmium

Cadmium is a Core Data framework for Swift that enforces best practices and raises exceptions for common Core Data pitfalls exactly where you make them.

Cadmium was written as a reaction to the complexity of dealing with multiple managed object contexts for standard database-like use cases. It is still important to understand what a managed object context is and how they are used, but for typical CRUD-style usage of Core Data it is a complete nuisance.

With Cadmium, the user never sees a NSManagedObjectContext or derived class. You interact only with argument-less transactions, and object fetch/manipulation tasks. The contexts are managed in the background, which makes Core Data feel more like Realm.