By Alexey Yalyshev
Word Radar is a mobile-first AI vocabulary coach that turns the words a learner encounters in real content into a personalized study curriculum. During onboarding it estimates the user's level from unknown-word taps, then builds a personal word bank with translations, context, and difficulty. It also imports YouTube links, podcasts, and articles to identify vocabulary that is new for that specific learner and reinforce it with quizzes and spaced repetition.