macOS additionally supports a variety of other formats, as described in Supported File Systems.
APFS replaces HFS+ as the default file system for iOS 10.3 and later, and macOS High Sierra and later. Therefore, the file system is one of the fundamental resources used by all processes.ĪPFS is the default file system in macOS, iOS, watchOS, and tvOS. A file system handles the persistent storage of data files, apps, and the files associated with the operating system itself.