Gregory's Server@ivory @rob I had already been trying that, but could not find such a post so far. Ironically a reblog of @MonaApp today provided the test case… It works!
What defines the target language?
On the web (instance) it is English (the configured interface language?), but in Ivory (App) it’s my native language (language set on iPhone?).
@rob should be based on your setting in the instance website.