Mobile KSI

King Sejong Institute Foundation

About this app

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!

Ratings and reviews

watta perfect app! it's amazing, I really like it❤it's free , easy to use and fun , also it's focusing on different skills such as : reading , writing and listening. and you can learn too many useful vocab and test yourself with an exam , also it includes grammar lessons with examples which is too easy to understand. I enjoy learning with this app💕

I love this app because I can use it offline & I can choose my desired level. Unlike most other apps that force you to start from elementary levels. Also it's free!

This app is great, especially the writing section. After studying new words, I can write/imitate/ them not leaving the spot to get a notebook or pen. Secondly, the My Page section gives an opportunity to evaluate learning process as it shows history of learnt material including vocabulary and question notes. It has also, a learning analysis section! Overall, I'd recommend the app to those who want to level up their Korean.

What’s new

- Service stabilization

We’re always working to improve the app.
If you have any feedback or encounter any issues, please reach out to us through the app’s support menu.
Thank you!