Concurrency/Async

Promises

1917

A modern framework that provides a synchronization construct used by Google.

Hydra

1442

Full-featured lightweight library which allows you to write better async code.

Overdrive

828

Fast async task based framework with focus on type safety, concurrency and multi threading.

Queuer

726

Queue manager, built on top of OperationQueue and Dispatch (aka GCD).

TaskQueue

625

Library which allows you to schedule tasks once and then let the queue execute them in a synchronious matter.

Promise

439

A Promise library based partially on Javascript's A+ spec

Dispatch

258

Multi-store Flux implementation in Swift.

SwiftQ

243

Distributed Task Queue.

Me

193

A super slim solution to the nested asynchronous computations.

GCDTimer

171

Well tested Grand Central Dispatch (GCD) Timer.

Promis

75

The easiest Future and Promises framework in Swift. No magic. No boilerplate.

AsyncNinja

73

Library for concurrency and reactive programming. http://async.ninja/

AsyncKit

53

Utilities for asynchronous code inspired by JavaScript module async.

PiedPiper

35

A small set of classes and functions to make easy use of Futures, Promises and async computation in general.

GroupWork

35

Framework that helps you orchestrate your concurrent, asynchronous functions in a clean and organized way.