A MOBILECONFIG file is a configuration file created for devices running iOS, macOS, watchOS, or tvOS. It contains device setup information, such as password policies, access permissions, and proxy connection information, as well as VPN, email, and calendar settings. MOBILECONFIG files are commonly used for deploying and registering Apple device configurations within enterprise and school networks.

MOBILECONFIG files are typically hosted by a remote profile service, which communicates with the Apple device to configure and register it. When transmitted, MOBILECONFIG files can be digitally signed so that the information is sent securely. Mobile configuration files can be used to manage and deploy settings to a large number of devices. They can be created by the iPhone Configuration Utility, which is available for both Mac and Windows platforms. However, iOS 8 Apple iPhone Configuration Utility is no longer available. You can open MOBILECONFIG files with Apple Configurator 2 for macOS.