Internationalization scripts working with xcode
It provides incremental localization on XCode projects, including text strings, XIB and storyboard files.
Fill in Localizable.strings as you always do, but including text strings (for code using NSLocalizedString), XIB and storyboard files.
Set up your XIBs/Storyboards in English language, provide translations in Localizable.strings and have this script create/update localized XIBs/Storyboards for you.
Add it as build phase in Xcode or run manually every time you need.