Fluency is a language‑learning app that relies on immersion rather than traditional drills. It provides stories, YouTube videos, and music in the target language, featuring word‑by‑word highlighting, instant translation, and synchronized audio to support reading and listening comprehension. Users can tap any word to see its meaning and follow along with subtitles or karaoke‑style text while listening. The app supports self‑paced study for beginner, intermediate, and advanced learners.