The process involves obtaining a specific type of application file, designed for the iOS operating system, from a source external to the official Apple App Store. This file is then installed onto an iPhone or iPad using alternative installation methods, bypassing the standard app distribution channel. These methods frequently involve third-party software platforms designed to facilitate application installation without requiring jailbreaking the device.
Circumventing the official App Store allows users access to modified versions of applications, potentially including features or content not available through the officially distributed version. This can range from cosmetic changes to gameplay enhancements in games. Historically, individuals have pursued this approach to access software not approved by Apple, or to install older versions of applications that may have been removed or updated on the App Store.