The installation of applications on iOS devices through methods other than the official App Store is a process involving the transfer and setup of software packages directly onto a device. For example, developers often utilize this technique to test applications before they are formally submitted for App Store review and distribution.
This approach to application installation offers increased flexibility, enabling access to software that might not meet the App Store’s guidelines or is still under development. Historically, this method has been a valuable tool for developers and advanced users seeking greater control over their devices and the applications they use. It also allows for the distribution of internal apps within organizations without public availability.