Lingvist is a language‑learning app that uses an AI‑driven spaced‑repetition system to assess a learner’s level and deliver vocabulary decks that focus on the most useful words. Users can study built‑in decks of high‑frequency vocabulary or create custom decks from textbooks or Wikipedia articles, with concise grammar tips integrated into the exercises. The app monitors daily study time, provides progress tracking, and adapts the material as the learner approaches forgetting. Full courses are available for a wide range of languages, supporting learners from beginner to advanced stages.