But first, let me briefly explain what JIT is and how it works on iOS. Riley Testut, the developer behind AltStore, shared with 9to5Mac more details about how this change will impact these unofficial apps that offer console and virtual machine emulation. Apple has silently introduced support for Just-In-Time (JIT) compilation on iOS 14.2, which will allow emulation apps to run at full speed on the iPhone and iPad.
These apps run based on hacks and exploits, which reduces performance considerably - but that’s about to change.
You may know some unofficial iOS apps that offer some kind of emulation.
