AFNetworking is a delightful networking library for iOS and Mac OS X. It has a modular architecture with well-designed, feature-rich APIs that are a joy to use.

The AWS SDK for iOS provides a library, code samples, and documentation for developers to build connected mobile applications using AWS.

Free, world-wide, private phone calls for iPhone. Private messaging coming soon!

WordPress for iOS - Official repository http://ios.wordpress.org/

Community driven revival of the Nintendo DS emulator for iOS.