iCloud Productivity App in Swift and Objective-C

Lister: A Productivity App (Obj-C and Swift): “Lister is a list management app written in Swift that’s built on top of iCloud and the powerful NSDocument and UIDocument architectures.”

There is a lot of ground covered in this Apple project:

” In a single project you’ll find both iOS and OS X targets, embedded frameworks, UI extensions, live rendering of custom views in Interface Builder, iOS and OS X Storyboards, Auto Layout, and more.”