Conjugaid drills Korean verb conjugation. It puts a verb and a form on screen — polite present, formal past, -(으)면 — and you produce it. Get it wrong and it names the rule you missed: ㄷ turns into ㄹ before a vowel, so 듣다 is 들어요 and never 듣어요.
208 verbs and adjectives, sixteen forms, every irregular stem Korean has. No account, no sign-up. Practice works offline, on a plane too.
WHAT YOU PRACTISE
Four speech levels
해체, 해요체, 합니다체 and 한다체 sit on every form as a badge. Picking the wrong level is the mistake textbooks explain and never drill.
Sixteen forms
Eight core ones: polite present and past, polite negative, formal present and past, casual, plain written, and the -고 connective. Eight advanced ones: -(으)면, -(으)세요, -(으)ㅂ시다, -(으)ㄹ 거예요, -고 있어요, -고 싶어요, -아/어서 and the modifier.
Every irregular stem
ㅂ, ㄷ, ㅅ, 르 and 러, ㅎ, plus the 으 and ㄹ drops. Narrow a round down to one of them and drill it until it sits.
Forms that do not exist are never asked
An adjective has no "let us" and no "I want to". The app knows the difference between 동사, 형용사 and the 있다/없다 type, and asks accordingly.
SYLLABLES, CHOOSE OR TYPE
Build each answer from syllable blocks, no Korean keyboard needed: the keys hold the syllables of the answer, of the typical mistake and of the verb's other forms. Or pick one of four options, or type if you have a Korean keyboard. For irregular stems, one wrong option is always the form a regular stem would have produced, and its syllables sit on the keys too. That is the mistake worth learning to spot. Leave out a vowel merge, as in 가아요 instead of 가요, and the app shows that rule as well.
WHAT COMES BACK
Every wrong answer shows what you wrote, the correct form, and the rule behind it. The round ends with a list of exactly what to look at again, and the next round starts there.
WHAT STICKS
Every verb and every form has its own state: new, missed, learning, or solid after three correct answers in a row. A bar per verb in the list, a mark per form on its page — so you can see what is left instead of guessing.
THE VERB LIST
A searchable table of all 208 verbs with every form, part of speech, TOPIK level and stem type — the reference you reach for mid-sentence, not mid-lesson. Search in Korean or in your own language.
NINE LANGUAGES
English, German, Japanese, Vietnamese, Chinese (Simplified and Traditional), Indonesian, Thai and Malay. Every verb meaning and every rule is written in all nine, not machine-swapped at runtime.
WHAT IS FREE
TOPIK I with 144 verbs and the eight core forms — no time limit, no ads, no account. One purchase adds the 64 TOPIK II verbs and the eight advanced forms. One time, not a subscription.
PRIVACY
Your progress stays on the device. No account, no advertising ID, no tracking. To see which features help, the app sends anonymous usage events to PostHog in the EU, such as a finished round and its score. Apart from that, the only connection is Apple's purchase check.
The conjugation tables are generated from explicit rules and cross-checked against KoParadigm (Apache 2.0).
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