Loop English is an innovative AI-based app designed to help users transition their English from passive knowledge to active use, focusing on building a ‘usable’ vocabulary through engaging with trending videos. The app boasts a collection of over 300,000 videos and 150,000 words, selected by AI to cater to personal interests and English proficiency levels. It addresses the common issue of struggling to use English in real-life situations despite extensive learning, by integrating the learning process from the discovery of unknown words to their application in everyday life. The app’s features include personalized word recommendations, loop optimization for efficient learning cycles, automatic word extraction from videos, article analysis, and sorting by user level to ensure that learners are presented with content that matches their abilities. The app allows users to search for videos by words to see native usage and categorizes topics by interest, making it a dynamic and user-centric platform for English language learners.