I’m astounded by Langua. I've been listening to podcasts and yt videos through it. It lays out the transcripts in italian. Then I can highlight a word I don’t know and it saves it for flashcards. Then the AI can ask me to use the new words in a sentence. And if I get it wrong (most of the time) it corrects me and shows me the correct sentence. I can already sense the improvement I am making. The AI conversation partner is extremely helpful because it feels quite natural and is never busy, asleep or working when I want to converse.