Folius: Books & Languages Live

Turn every book into language practice. Folius is an ebook reader built for language learners. Read real books without constantly leaving the page: tap a word for an instant translation, understand phrases in context, save useful vocabulary, and practice it later until it becomes part of your own speech. Read without breaking your flow • Tap any word for an instant translation • Translate phrases and full sentences • Listen to words and text with text-to-speech • Copy text whenever you need it Turn new words into active vocabulary • Save words and expressions while you read • Review them in the context where you found them • Practice with simple vocabulary exercises • Explore useful grammar and phrasal verbs from the text Go deeper with AI • Understand meaning, nuance, and context • Get grammar explanations based on what you are reading • Practice using new vocabulary in your own sentences • Build confidence with AI-powered language practice Made for real books • Read EPUB, FB2, PDF, and TXT files • Keep your reading progress • Add bookmarks and search inside books • Choose the reading style that feels comfortable for you Folius is for learners who want more than a dictionary. Instead of stopping at “What does this word mean?”, it helps you move toward “How can I use this myself?” Read more. Understand more. Use more of the language you learn.