LAIX is an artificial intelligence (AI) company that provides online English learning services through its Liulishuo mobile app. It offers English Liulishuo app, which offers a suite of courses, including free courses for leisure learning, the paid personalized standard courses, DongNi English, and other paid courses; and LiuLi Reading mobile app that allows users to read articles from publishers supplemented by detailed learning tips and quizzes. It also provides IELTS Liulishuo app, which helps users to improve their scores on the IELTS spoken English proficiency test; and learning services for corporate customers.