The translating part is by far the hardest. But there are services to organize a crowd sourced translations of your app / service.
Booth android and iOS app building frameworks will try to force you into using variables for every rendered string (allowing you to change them easily and in one place - f.ex. based on user / device settings).
Booth android and iOS app building frameworks will try to force you into using variables for every rendered string (allowing you to change them easily and in one place - f.ex. based on user / device settings).