The process enables the installation of applications on Apple’s mobile operating system without requiring the official App Store. It involves cryptographically securing an application package for distribution and use on designated devices. This is often achieved using developer certificates or enterprise distribution profiles.
This capability is crucial for developers testing applications before release, organizations distributing internal apps to employees, and users seeking to install modified or unavailable software. Its historical context lies in the restrictions imposed by the walled-garden approach of the iOS ecosystem, prompting the development of methods to bypass these limitations for legitimate purposes.