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Apple removes 'iDOS 2' from iOS App Store

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Apple on Monday removed popular DOS emulator "iDOS 2" from the iOS App Store, citing guidelines against installing or running executable code that changes an app's features or functionality.

Developer Chaoji Li first warned customers of iDOS 2's imminent demise in late July, saying Apple would pull the title because it fails to observe App Store Review guideline 2.5.2.

Apple's rule states, "Apps should be self-contained in their bundles, and may not read or write data outside the designated container area, nor may they download, install, or execute code which introduces or changes features or functionality of the app, including other apps."

Li confirmed the removal of his app in a tweet on Monday.

A popular emulator, iDOS 2 simulated the DOS system on iOS to enable access to classic games and allow users to code, interact with applications and even run Windows 3.1. Updates to the app enabled PC keyboard, gamepad, and mouse connectivity via Bluetooth.

An update in September brought iTunes File Sharing compatibility, allowing users to import files and run custom games or programs. It was this utility that caught Apple's ire.

"Specifically, your app executes iDOS package and image files and allows iTunes File Sharing and Files support for importing games. Executing code can introduce or changes features or functionality of the app and allows for downloading of content without licensing," Apple said in a letter to Li.

In an ensuing blog post, Li said he would not remove the integration as it would be a "betrayal" to customers who purchased the app for that capability.

For his part, Li claims he was open about the app's functionality in each App Store submission, going so far as to include a note pointing out the use of Document Browser mode and the inclusion of iTunes File Sharing. Apple's reviewers let the app slide for more than a dozen updates before dropping the axe last month.

An initial version of iDOS was published to the App Store in 2010 before being yanked by Apple. Li's second attempt, iDOS 2, was available since 2014.



13 Comments

rcfa 17 Years · 1123 comments

Really annoying! The whole point of a sandboxed emulator is that it’s secure. There’s no danger for system security from running legacy software. There’s a variety of old DOS apps, that I like to run, to open old files, etc. iDOS was ideal for such tasks. It’s restrictions like these that make the “Pro” in “iPad Pro” thoroughly laughable.

chadbag 13 Years · 2029 comments

This is dumb. I don't use this app personally but this is just dumb.  It won't do any good but I tweeted this story to Tim and Apple and mentioned my opinion of this.   I encourage others to do the same.  Especially if this impacts you personally.   

22july2013 11 Years · 3736 comments

Anyone who buys a product because of its "future capabilities" is foolish. Especially when that product resides in someone else's walled garden. Li's argument about betrayal makes no sense. Li's customers didn't purchase "future features" they purchased "current capabilities."

How is iDOS2 any different from a third party app store? I'll bet Epic is rooting for iDOS2.

elijahg 18 Years · 2842 comments

Anyone who buys a product because of its "future capabilities" is foolish. Especially when that product resides in someone else's walled garden. Li's argument about betrayal makes no sense. Li's customers didn't purchase "future features" they purchased "current capabilities."

How is iDOS2 any different from a third party app store? I'll bet Epic is rooting for iDOS2.

And those current capabilities are now non-existent because Apple has changed their interpretation of their own rules, again.