Interprocess: Preferences may be accessible to and modified from multiple processes simultaneously (for example between an application and an extension). Persistent: Preferences stored in NSUserDefaults persist across reboots and relaunches of apps unless otherwise specified. Preferences registered with -registerDefaults:.Preferences global to all apps for all users, in the current host.Preferences for the current domain, for all users, in the current host.Preferences global to all apps for the current user, in any host.Preferences global to all apps for the current user, in the current host.Preferences for the current domain, the current user, in any host. ![]()
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