The phrase refers to a speculated or anticipated interface modification application intended to emulate the appearance and functionality of the forthcoming iOS 18 operating system on devices running alternative operating systems, primarily Android. For instance, users desiring the aesthetic of a new Apple software version might install such an application on their non-Apple smartphones.
These software modifications capitalize on user interest in upcoming operating system features and visual designs. Their perceived value lies in offering a preview of, or approximation to, the user experience of a new mobile platform without requiring a device upgrade or operating system migration. Historically, such applications have provided a bridge for users between different ecosystems or satisfied a desire for aesthetic customization.