Praktika is an AI-powered language learning app that uses a multi-agent system to make tutoring feel less like a scripted lesson and more like a real conversation. It was founded by immigrants who found that traditional education left them able to read and write, but unable to speak confidently in work or social settings. The app uses several AI agents, each with a specific role: a Lesson Agent (powered by GPT-5.2) acts as a personalized tutor, a Student Progress Agent tracks fluency and mistakes in the background, and a Learning Planning Agent (powered by GPT-5 Pro) adapts the long-term study plan based on individual goals. All agents share a persistent memory layer, so the system remembers your preferences and progress. The result is a 24% boost in Day-1 retention and doubled revenue. Why it matters: Praktika shows how multi-agent AI systems can move from generic feedback to truly adaptive learning, potentially reshaping how we think about tutoring at scale.