UIKit - Core Graphics

Design a beautiful icon for your game - 2) Pay close attention to the graphics of your game - Pay close attention to the motif of your game.

Allows your application to host audio processing plug-ins called audio units.

A set of object oriented frameworks that provides a runtime environment for apps running in Mac OS X and iOS.

By giving you the ability to directly work with line attributes - color spaces - pattern colors - gradients - shadings and image masks.

Allows you to set up an ad hoc network between devices.

Built upon the Core OS layer - it provides access to the hardware features in the Core OS layer and contains the Foundation framework.

To determine the orientation of the device.