Does OS X have a place within the application to save files like how you save files to the documents folders in iOS. I have .plist files to save for my app but I only want to be able to access them form within the app. Don't want do have a folder in the users documents folder or anything.
Primarily an iOS guy so apologies if this is obvious.
I'm not exactly sure what you want here.
To get a directory to store files in an out of the way location, you can use the Application Support directory (~/Library/Application Support/[APP_NAME]/).
To get the name of this directory, you pass NSApplicationSupportDirectory to -URLsForDirectory:inDomains: (see: Managing Files and Directories).
To prevent the user from reading a file, you can encrypt it (see: Encrypting and Hashing Data).