Amazing! I think the best way to learn a new language is to speak with someone and better if that person would tell you where you are wrong! I'm using Duolingo to learn but I'll start using your app as well.
Fast feedbacks:
- If you don't know what PrettyPolly is saying you close the conversation and that's bad for PrettyPolly (which is being less used) and for the learner (sad mood because you can't handle a conversation after days of learning) so maybe think about some difficulty levels? (I think you can handle it in the prompt of chatgpt) or I read in the comments about the translations.
- When I click the button to stop my microphone, the user doesn't have any feedback of what it's happening, so maybe show a loading spinner and block all the buttons?
Btw well done! Can't wait to see updates!