... feedback on what's actually going wrong. Duolingo doesn't solve this. YouTube doesn't solve this. Expensive human tutors exist, but at $20-$30 per session, most students simply can't afford consistent practice. So I built Coach Aira. Real-time AI voice conversations powered by Gemini 2.5 Flash Live API. You actually speak. It actually listens and responds like a human no noticeable lag, full duplex audio. After each session, Claude analyzes the transcript and gives you surgical ...