HayaiLearn is an AI-powered app designed to help users learn Japanese while watching their favorite YouTube videos, anime, shows, and music videos. The app features a smart pop-up dictionary that provides instant explanations when users hover over any word in the subtitles. It also allows users to save sentences for later review and includes quizzes to reinforce learning and ensure retention.

HayaiLearn offers different pricing plans: $10 monthly, $84 annually (a 20% savings), and a $184 lifetime fee. For user reviews, visit their website, social media pages, online forums, or YouTube comments.