Recently Apple reversed a long-standing policy that disallowed retro game emulator apps, so now gamers have access to decades of classic ROMs on the iPhone and iPad without work-arounds. But it appears that tolerance does not extend to emulating classic PC platforms, for games or any other purpose. Developers of DOS and early x32 emulators have been shown the door on the App Store.

According to a report from The Verge, Apple told developers that retro PC emulators run afoul of the App Store’s App Review Guidelines, section 4.7. These are the same rules that have proven so problematic for services that stream games from external servers. Though it now explicitly allows “game emulators” and “retro game console emulator apps,” that privilege apparently does not extend to apps that emulate more utilitarian software like DOS and Windows.

The developers of iDOS 3 and the UTM SE virtual machine both had their app submissions rejected, and social media posts indicate that Apple took exception to the programs specifically because they weren’t “emulators of retro game consoles.” The fact that both of these programs can and often are used to play PC games over 30 years old doesn’t seem to enter into the equation.

Apple was characteristically unhelpful in nailing down the guidelines. Would a Commodore 64 count as a console or a PC? Apparently the former, since C64 emulators are available on the App Store right now, despite the fact that the device was sold as a personal computer and could run a wide variety of productivity programs. As usual, developers are at Apple’s mercy when it interprets its own rules, and won’t find out that their app is in violation of those rules until it’s rejected.

It’s worth pointing out that Google’s Play Store for Android phones and tablets allows more or less any emulation app for any platform, so long as they don’t actually contain copyrighted content in the form of system files or ROMs. Apple seems to have changed its position earlier this year, around the same time that European Union legislators forced the company to allow third-party app stores on iOS, something already possible on Android. Users in the EU may be able to run PC emulators on the iPhone and iOS when this functionality becomes available, albeit without the ease of access granted by the App Store walled garden.

Author: Michael Crider, Staff Writer, PCWorld

Michael is a 10-year veteran of technology journalism, covering everything from Apple to ZTE. On PCWorld he’s the resident keyboard nut, always using a new one for a review and building a new mechanical board or expanding his desktop “battlestation” in his off hours. Michael’s previous bylines include Android Police, Digital Trends, Wired, Lifehacker, and How-To Geek, and he’s covered events like CES and Mobile World Congress live. Michael lives in Pennsylvania where he’s always looking forward to his next kayaking trip.

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