Atlas Runa - adaptive AI language-learning web app

The CEFR lays out A1 through C2 as the ladder of language ability, and B2 is widely treated as the practical "fluency" line, yet most learners stall well before reaching it because their tools treat reading, listening, writing and speaking as separate activities. Atlas Runa ties all four skills into one continuous, level-aware feedback loop. It is an adaptive freemium web app for Italian, Spanish, Mandarin, Japanese, and German, with an AI tutor called Runa that corrects writing and speaking, runs conversation practice, and leads shadowing sessions with pronunciation scoring. Thousands of free graded stories (including HSK and JLPT levels) and focused listening practice keep input at the right challenge, the study hub adapts to your saved words, lookups and weak spots, a browser extension carries reading and video practice into any tab, and goal modes let you study around exams, books or shows. Based in New York, founded by Eli Most. More at atlasruna.com and linkedin.com/company/atlas-runa.