Flash Fluency: Korean

FlashFluency is a Korean-learning app that turns the content you care about into lessons at your level. Paste in song lyrics, a news article, or your class notes (or share a link or snap a photo), and the app builds practice around the words and grammar in it. For a structured path, its core curriculum covers the 5,000 most frequent Korean words, ordered by how often they appear in real Korean, plus 300+ grammar points arranged from beginner to advanced.

Practice is built around full sentences rather than isolated words. Each sentence introduces at most one new word or grammar point, so new material is always surrounded by what you already know, and spaced repetition brings items back at the right intervals. Exercises include reading, listening, fill in the blank, translation, and pronunciation.

A particularly useful feature for Korean learners is detailed pronunciation feedback that identifies problems at the individual sound and syllable level rather than simply marking pronunciation right or wrong. The app also includes lessons on Korean pronunciation and sound-change rules.

‘FlashFluency: Korean’ is available on iOS and Android and is free to try, with optional paid plans.