Moderate iOS localization from Excel
One day if you feel tired to moderate localization of iOS project from XCode, try with excel.
All things you need are Python, xlsxwriter, xlrd and excel. By using the following scripts, you can (1) export all strings file to excel, (2) update anything or add new languages, (3) and finally import it into xcode.
Note: backup your project before doing anything (or using any source control). Try at your own risk.