Eppika is a language‑learning app that teaches Spanish through an adaptive library of books and short stories tailored to the learner’s proficiency. Users choose texts matched to their level and read them while an integrated audio narration plays each sentence. Tapping any unknown word provides an instant translation, enabling vocabulary and grammar acquisition in context without separate flashcards or drills. The method relies on extensive reading and comprehensible input, offering an alternative to traditional courses and audiobooks, and works both online and offline for beginners through advanced learners.