Enlarge / Don't get your hopes up—this iOS version of Doom was ported from open source code, not run via a classic PC emulator. (credit: Tom Kidd) Earlier this year, Apple started officially allowing "retro game emulators" on the iOS App Store without the need for cumbersome jailbreaking or sideloading. But if you want to emulate retro PC games on your iOS device, you are apparently still out of luck. In a recent blog update, iDOS developer Chaoji Li said that the latest version of the DOSBox-based MS-DOS emulator was finally rejected from the iOS App Store this month after a lengthy, two-month review process: They have decided that iDOS is not a retro game console, so the new rule is not applicable.