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Formerly, iOS was used for both Apple's phones and tablets. Then, the iOS brand was split into two parts in 2019, with iOS now being the OS exclusively used in the iPhone and the now-defunct iPod Touch. The second half, named iPadOS, is a fork of iOS for iPads that makes use of their larger screens, hence its name. Most iOS apps and games work on iPadOS.
Unlike its direct competitor, [[Android emulators|Android]], there are practically no usable emulators, as the official iOS SDK (macOS-only) only allows for running your own projects, i.e., they run code generated for an x86 target rather than ARM code as used by iOS. Some simulators Similar to most of the Android emulators, some emulators (e.g., [[BlackThunder]]) make uses two-step approach, making use of the simulator in the iOS SDK to run a few chosen iOS apps that are recompiled for x86. Unlike previous emulation trails, BlackThunder first loads a highly trimmed Hackintosh image via VirtualBox, which loads Xcode and an iOS simulator into it, then runs decompiled iOS apps recompiled for the x86 architecture. Appetize.io and other tools that claim to emulate iOS on a web browser are in reality just the iOS simulator in XCode wrapped around a cloud stream to the web browser, and like the iOS XCode simulator, need the source code to run. More recently, touchHLE managed to get a few older iPhone OS apps running by recreating some of iOS’s standard libraries and emulating just the iPhone’s CPU, and nearly the same time, QEMU-iOS got released and can successfully emulate iPhone OS 1.0 on an iPod Touch 1st generation, albeit with bugs.
==Emulators==
:;BlackThunder
::The official iOS SDK (macOS-only) only allows for running your own projects, i.e. they run code generated for an x86 target rather than ARM code as used by iOS. However, some simulatorsemulators, e.g. BlackThunder, make use of the simulator in the iOS SDK to run a few chosen iOS apps that are recompiled for x86. [[BlackThunder]] is a closed-source, commercial iOS simulator that can run a few commercial iOS apps. Unlike previous emulation trails, BlackThunder first loads a highly trimmed Hackintosh image via VirtualBox, which loads Xcode and an iOS simulator into it, then runs iOS apps that are decompiled and recompiled for the x86 architecture.
;Hypervisor
