Ask HN: What is the best app for realtime voice language translation?

Hi, my wife is Vietnamese and we are looking for the best possible app to translate between english/polish/vietnamese audio/voices. What is best app currently to translate in realtime? We tried Google Translate, but the quality of the service/app is very bad. ChatGPT app is much better but it is not really focused on voice language translation. It would be awesome if the app works offline.