About this app
AI-Powered Korean Learning Platform for Learners from 16 Countries Your journey to Korea starts with SEDA — from your very first Hangul letter to passing the EPS-TOPIK. Every year, 490,000 people take on the EPS-TOPIK challenge. Passing means the start of a better life. SEDA combines AI technology with native language explanations — a smarter way to learn Korean and boost your chances of success. [Why SEDA?] SEDA solves the limitations of traditional learning. "I want to work in Korea, but I can't even read Hangul yet." - Start from zero. Learn the Korean alphabet step by step, with audio and writing practice. "I have so many questions, but I don't know why I got them wrong." - AI explains both correct answers and why wrong answers are wrong in your native language. "I keep repeating the same questions and not improving." - AI generates new questions for continued practice. "I forget what I studied so quickly." - Scientific review intervals (D+3, D+7, D+30) support long-term memory. "English explanations are hard to understand." - Learn in 11 languages including Nepali, Vietnamese, and more. [Key Features] Hangul Foundation Course (New!) - Learn all vowels, consonants, and final consonants (batchim) step by step - Trace every letter with stroke-order writing guides - Combine letters into syllables and start reading real Korean words - Audio pronunciation for every letter and syllable - Quick quizzes after each letter, so you never move on before you're ready Reading and Listening Practice by Type - Question formats aligned with the real exam - Units divided into Daily Life and Work Life - 5 questions per set for systematic repetition Mock Test Practice - 20 Reading questions / 20 Listening questions - Practice time management in exam-like conditions - Check scores and identify weak areas Smart Review System - Auto-collect wrong answers: Create error notes - Review reminders help you study before you forget - Marked as mastered after 3 correct answers Native Language Explanations in 11 Languages - Why the right answer is right - Why the wrong answers are wrong - Key grammar and vocabulary explanations [Supported Languages] English Nepali Vietnamese Bahasa Indonesia Thai Khmer Bengali Tagalog Urdu Russian 한국어 [Our Promise] Smarter Learning with AI: AI-generated practice questions and learning insights. Designed for Global Learners: Built for learners from 16 sending countries — including complete beginners starting from zero. Learn Anytime, Anywhere: On your commute, during lunch, before bed - every moment becomes study time. [What's Next for SEDA] Word Dictation & Listening Practice (Coming Soon) More Korean learning paths for every goal (Coming Soon) Learner Community (Coming Soon) Real Mock Test Mode (Coming Soon) Personalized Learning Analytics (Coming Soon) [Contact Us] Questions or suggestions? We'd love to hear from you. Email: coko@coko.kr Success belongs to those who prepare. With SEDA, your Korean journey starts today — one letter at a time. Start Now!
Latest release
What’s New
New • "See how to write" is now in Learn Hangul — in letter lessons and tracing practice alike. Stroke order plays automatically the first time you meet a letter, and you can tap the button to replay it. Letters with double batchim are covered too. Fixed • Other small fixes and wording touch-ups.
Audience growth
Ratings growth
Baseline captured. Growth appears after the crawler observes a changed rating count.
Momentum comes from crawler snapshots for the tracked storefront. “Viral growth signal” means unusually fast recent rating gains; it is an indicator, not download data.
Price tracking
Price intelligence
First snapshot captured. The trend line starts after the next crawler price observation.
- First observed Aug 23, 2026 · 1:06 PM Free
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