This is a free service provided by Humans are Human that can be used to create language files for iOS and Android.

Some caveats:

• Each item must be written as a single line. This includes array-strings in Android which should appear something like this:
  <string-array name="confirm_array"><item>Yes<item><item>No</item></string-array>
• Really long files may not work. (This hasn't been tested with files over 400 lines.)
• You must click Refresh when returning to this page.
• iOS files should have lines formatted like: "variableName" = "variable value";
• Files cannot be UTF-16, so you may have to change your iOS file in Xcode by selecting the file and changing the Text Encoding drop down all the way to the right to UTF-8.
• Comments are fine, but they will not be in the translated files.
• The order of the lines in the files may differ in the translations.
• We know this interface blows. We're lazy. It's part of the reason we wrote this tool.

Any questions or comments should be directed to translator@humansarehuman.com.