Nice to see you made your app available openly! I've just checked for the license, but could not find any – so unfortunately "open" means just "read only" but "all rights reserved" (which is the default if nothing was specified). Would you mind specifying a free/libre license for your app – ideally one approved by OSI/FSF? You can find a nice list at SPDX. Thanks in advance!
Sometimes a Word (e.g. "contendere" ) has multiple correct translations ("eilen, sich anstrengen, kämpfen") and currently it is difficult to train this type of words (they are the majotity) with this app. It would be nice if you could implement a feature that adds multiple translations to one word, thank you in advance.