The app "MARS - the arrival" supports English and German languages from the start.
With app version 1.4.0 four new languages are supported: Spanish, Portuguese, French and Italian. These were not translated by a human though but by Google Translate and hand optimized to some degree.
But even if your own language is not under them, the app offers a Google Spreadsheet-based localization kit allowing easy translations of the English app texts into your own language. For now this is limited to Latin Alphabet based languages. We are preparing language support for most commonly spoke Asian languages as well but this will not be part of version 1.4.0.
More info to come as soon as 1.4.0 is released.