CLASSUM is a communication-centered growth platform that is optimized for education. With CLASSUM, you can design a learning experience with more interaction from start to finish.

<aside> 💡 Ever since its launch in 2017, CLASSUM is garnering a lot of attention around the world, being used by 6,000 schools, companies, and organizations in 32 countries.

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📌 About CLASSUM

🥁Our Story

🏆Recognitions

🧑🏼‍🤝‍🧑🏽Partnerships

🎆Media Kit

📺 CLASSUM on the Spotlight

🍿 Social Media

https://youtu.be/sy2hdIaQyms

📧 Email us at [email protected] to contact us with a press/media inquiry.

📌 About CLASSUM


Click each ▶️ to read the answers!

🥁Our Story


Click each ▶️ to find out more about Youjin and Chaerin’s story of creating CLASSUM!

“There are millions of other people like me out there who are struggling because they come from different backgrounds. So, I wanted to start from the basics: communication.”

Youjin Choi (Co-founder and CEO)

Youjin Choi (Co-founder and CEO)

Chaerin Lee (Founder and CEO)

Chaerin Lee (Founder and CEO)

“Information was often shared only among acquaintances, usually between college clubs. I found this communication method very exclusive — we were excluding each other.”