NBUKit, Licensed under the Apache License, Version 2.0 (the "License") is a UIKit and NSFoundation convenience categories and subclasses. NBUKit features convenience methods to parse NSArray objets, support subbundles in NSBundle and handle file URLs with NSFileManager, check properties, retrieve common application directories and save/retrieve values from NSUserDefaults and Keychanin with UIApplication, and programatically send a message through the responder chain with UIResponder among others.
ObjectAL shields you from the nastiness of audio programming on iOSand Mac. ObjectAL follows the same principles as the ObjectAL API and offer several functions such as play, pause and skip among others.
NYXImagesKit is a project for iOSwhich regroups a collection of useful UIImage categories to handle operations such as filtering, blurring, enhancing, masking, reflecting, resizing, rotating, saving. There is also a subclass of UIImageView to load an image asynchronously from a URL and display it as it is downloaded. NYXImagesKit requires at least iOS5.1 for proper implementation.