Mobile KSI

All-in-one Korean learning app with vocabulary, grammar & speaking contents

Mobile KSI – The Official All-in-One Learning App

Vocabulary, grammar, conversation – now all in one app!

Learn Korean more easily and efficiently with the official integrated learning app.

✅ Full KSI Korean Curriculum in One App

Access the complete Korean language curriculum of KSI.

From beginner to advanced, follow a structured path to improve your Korean step by step.

🗣️ Speaking & ✍️ Writing Skills Improvement

Boost your speaking and writing skills with smart tools:

AI-powered speaking evaluation

Handwriting recognition for writing practice

Practice real-life communication and track your progress.

🎯 Personalized Learning Just for You

Collect and manage the words, grammar points, and exercises you've studied.

Review what you need and build your own study materials for efficient learning.

📲 Study Anytime, Anywhere – Even Offline

Once you download the learning content, you can use the app offline.

Study freely, wherever you are – without needing the internet.

Download Sejong Korean now and start your journey to mastering Korean, anytime, anywhere!