Vocabulary trainer needed - sync across devices Hi, I'm looking for recommendations. I need a new vocabulary trainer. I am currently using viaverbi (a program I like very much but which is unfortunately outdated). There are a few features I am looking for: - it should schedule the repetition of the words automatically and according to my performance - runs on MacOS - can be synced across devices (preferably iOS, MacOS, Windows, and Android) - lets me choose if an answer was correct or not - lets me add my own vocabulary (not a 'learn the 1000 most common words' application) Thank you very much for any help/recommendation!