Apple already approves applications written using the Xamarin tools (C#/F# compiled with LLVM), and RubyMotion. They are ok with other tools. Haskell is a more

Apple already approves applications written using the Xamarin tools (C#/F# compiled with LLVM), and RubyMotion. They are ok with other tools. Haskell is a more compiled language than any of F#, C# or RubyMotion (if thats even possible). There is no reason to worry about that. Worry about the normal reasons for getting an app rejected :) its also worth noting that XCode 5 (as of Dev Preview 5 or 6) has some patches backported from Clang HEAD via the Clang 3.3 Point release that fix bugs that have only ever been triggered by GHC, namely http://llvm.org/bugs/show_bug.cgi?id=16371 http://llvm.org/bugs/show_bug.cgi?id=16371 and http://llvm.org/bugs/show_bug.cgi?id=16363 http://llvm.org/bugs/show_bug.cgi?id=16363 (and I'm incredibly grateful to the engineers who work on Clang for helping get those patches backported to the pending Clang 3.3 bugfix release, and thence to apple Clang, I owe them all a beer or something like that) I think Apple, as a business, wants every community of smart Developers to write amazing, profitable applications for their Desktop and Mobile ecosystems. Haskell targeting iOS immediately grows the pool of smart developers who might write iOS applications, and hopefully also just make writing certain very interesting applications much less painful! This is exciting! tl;dr the latest xcode 5 Apple Clang dev previews have backported patches from Clang HEAD fixing bugs only ever triggered by GHC. Interpret that however you please :)