Learn through step-by-step lessons from a world-champion AI tutor. Practice with six sparring partners of varying difficulty. Play games without hints against AI opponents rated nearly world-champion level.
Learn English through CEFR-based courses, IELTS and TOEFL preparation, and Business English lessons. Access live online sessions, track progress with interactive exercises, and download printable materials for offline study.
Look up words with definitions, pronunciations, and example sentences. Search intuitively for vocabulary. Learn related expressions and build language skills. Ideal for travelers and students.
