EventBus – Mobintouch

TopicEventBus

Publish–subscribe design pattern implementation framework

Easy Swift Futures & Promises

Lightweight promises for iOS, macOS, tvOS, watchOS, and server-side Swift

NotificationCenter based Lightweight UI / AnyObject binder

A Promise library for Swift, based partially on Javascript's A+ spec

Promise/A+

The easiest Future and Promises framework in Swift

Lightweight full-featured Promises, Async & Await Library in Swift

NoticeObserveKit is type-safe NotificationCenter wrapper

Write great asynchronous code in Swift using futures and promises