You can get pretty much native performance out of a cross-platform SDK like: http://www.appcelerator.com/titanium/titanium-sdk http://www.appcelerator.com/titan

You can get pretty much native performance out of a cross-platform SDK like: http://www.appcelerator.com/titanium/titanium-sdk http://www.appcelerator.com/titanium/titanium-sdk and make the dev environment even more rapid with something like: https://github.com/dbankier/JAST https://github.com/dbankier/JAST I don't quite get why you would develop in XCode & Android unless you were trying to squeeze out the last x% in performance or were doing something super custom like Instagram.