Model framework for Cocoa and Cocoa Touch

An elegant messages UI library for iOS

Three20 is an Objective-C library for iPhone developers

A fast and clever hex editor for macOS

Cocos2d for iOS and OS X, built using Objective-C

Drop in sharing features for all iPhone and iPad apps

a Cocoa GUI for /etc/hosts

A page-turning interface for iOS apps

Open source iPhone code

NSWindow subclass with a highly customizable title bar and traffic lights

Sample Code

Serial port library for Objective-C and Swift macOS apps

Mac Programmers Text Editor

The Mac Client for Git

Base class for Objective-C/Cocoa for creating model objects

AVFoundation based movie playback view and controller for AppKit

SFpark iphone app source code

Basue's Location Library for iOS

Cocoa Library ro optimize external PNG to iOS optimized PNG on the fly.

A very simple framework to set up hot keys in a Cocoa application

iPhone Calculator sample. Tutorial of MVC.

Apple iOS implementation of the PhoneGap API

The Mac Client for Git

To develop FileMaker aware iPhone application in simurator

Drop in sharing features for all iPhone and iPad apps