🇰🇷 Best Korean apps for advanced learners

Free on desktop, Android and web; the iOS app is a one-off paid purchase that funds the project. The interface is dated and the options are overwhelming at first, but nothing beats it for retaining vocabulary over years. Most effective when you stop grinding premade decks and start mining sentences from things you actually read or watch.

Korean–English and Korean–Korean entries with thousands of real example sentences pulled from news and books, native audio, conjugation info and Hanja. The mobile app is excellent and works offline for core entries. Free. The interface is Korean-first and the volume of results is overwhelming at first — expect to learn how to read the entry layout before it becomes fast.

Trained on Korean-heavy data, so it handles honorific levels, particles and everyday idiom better than Google Translate, and it does image, voice and website translation. Free on web and mobile. It is a crutch, not a study tool: use it to unstick yourself on a sentence you have already tried to parse, and never to produce Korean you are about to send to a person.

Built on Tatoeba sentences, it drills words in context by frequency band across 50+ languages and 170+ language pairings, with a genuinely generous free tier. It explicitly starts where beginner apps end, so it is the natural 'what now?' answer for someone who finished a Duolingo tree. Sentences are crowd-sourced and occasionally awkward or oddly specific, and it teaches nothing about grammar explicitly.

Built-in correction tools let partners fix your messages inline, and the social 'moments' feed gets you corrections from strangers without arranging a call. Free for the core exchange; VIP adds more translations and simultaneous target languages. The persistent caveat is that a fair share of users treat it as a dating app, and exchange partners are unreliable — it works best once you already have some output to correct.

Import podcasts, articles or ebooks, tap unknown words for definitions, and LingQ tracks your known-word count over time. The free tier caps how many saved words you can keep, so serious use means paying (~$13/month or less annually). The interface is clunky and the built-in SRS is weaker than Anki, but the reading-plus-audio workflow with 50+ languages is hard to replicate elsewhere.

Same idea as HelloTalk but with vetted profiles and a cleaner focus on actual voice and video calls, which makes it noticeably less spammy in practice. Free to use; Pro adds unlimited partner search and extra languages, and the app also sells paid tutors. Both apps live or die on finding one or two committed partners, so expect to message a lot of people before anything sticks.

Pulls articles from outlets such as Dong-A, Chosun and VOA Korean and wraps them in a reader with per-word dictionary lookup, adjustable audio, flashcards and level filtering — Korean's nearest answer to NHK News Web Easy, though it grades existing articles rather than rewriting them. Free with ads and an optional paid upgrade. Available on Android and iOS. News vocabulary is narrow, so it complements rather than replaces conversational study.

The closest thing Korean has to Yomitan: click any word in an imported ebook, article or subtitle file to get definitions, grammar-in-context, Hanja and one-click Anki cards, while it tracks which words you know and recommends content by how much of it you would understand. Browser extension plus Android and iOS apps. Subscription-based with a 7-day free trial and no credit card up front. It assumes you already have grammar basics — it makes native material accessible, it does not teach you the language.

A streaming service where every show has clickable dual subtitles and saved words become flashcards, covering 15 languages with apps on phone, Roku and TV. It solves the 'what do I watch' problem for languages where Netflix's catalogue is thin. The library is much smaller than a mainstream streamer and it is subscription-only — if you already pay for Netflix, Language Reactor's free tier does most of the same job.

The heavyweight immersion toolkit: one-click sentence mining with audio, screenshot and definitions, plus its own SRS and known-word tracking, for 11 languages including Japanese, Korean, Mandarin and the major European ones. A 10-day free trial then a subscription (roughly $10/month). Overkill unless you are committed to a sentence-mining routine — if that describes you it saves hours a week, otherwise Language Reactor's free tier is enough.