Questions related to OS X or iOS `.app` files, particularly their creation. Underneath, these are a special folder called a bundle. iOS .ipa files are then based off of these.
In an application bundle, the first directory in the bundle underneath the top-level directory is usually named Contents. Within Contents there is usually another directory (called MacOS on Macs, or using the application's name on GNUstep), which contains the application's executable code.
An application bundle manages the code and resources associated with a launchable process. The exact structure of this bundle depends on the platform (iOS or OS X) that you are targeting. For information about the structure of application bundles
Bundles provide a simplified interface for end users and at the same time provide support for development. This chapter provides an introduction to bundles and discusses the role they play in OS X and iOS.
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