Any company interested in multinational growth should build localization into their app architecture to begin with, anyway. Then just contract out the actual act of translating the strings.
Big difference between building localization into the app architecture and translating the app to 20 languages as a starting point, though.
Sure, but the idea is that you can pay another service to do the translations. The main difficulty is supporting things like right-to-left text and other specific characteristics, but that shouldn't be a problem in Europe only.