The SCFacebook 3.0 is a simple and cleaner to use the api facebook-ios-sdk Objective-C to perform login, get friends list, information about the user and posting on the wall with ^Block for iPhone.
Cocoa Controls
TextFieldValidator for iOS
This control will help you to manage all kinds of validation effectively. For this you just need to provide regex string and other things will be handled by control itself.
MPGNotification for iOS
MPGNotifications is an iOS control that allows you to display in-app interactive notifications that are fully customizable to suit your needs.
ParseChat for iOS
ParseChat is a full native iPhone app to create realtime, text based chatrooms with Parse.
ParseChat is using Parse as backend which is basically free. (Free plan: 20 GB File Storage, 20 GB Database Storage, 2 TB Data Transfer, 30 req/s).
Really easy to setup, just copy/paste the code and use your own chatrooms.
PlistModel for iOS
A simple and easy way to interact with Plists as objects with properties populated at runtime and smart saving.
RBCollectionViewInfoFolderLayout for iOS
A UICollectionViewLayout that uses supplemental views to display a folder below a cell that looks like the screen was split. Mimics the pre iOS7 springboard groups visualization. Wrote this because all of the other “folder” controls like this use a screen shot to do the splitting, but I wanted my collection view to still be functional even with the folder open.