2019 · KB2A Tool At fifteen I founded KB2A and built a Messenger utility for viewing unsent messages and conversation statistics. It reached over 300,000 users, generated around VND 100M in freemium revenue and was featured by Kenh14 in 2022.

2026 · mindzone — in development KB2A's next product is a home for your thoughts built around one rule: "save anything, sort nothing". I lead the design while the team develops the product.

• No folders. The AI tags and sorts everything you save, because tidying up is the machine's job, not yours.
• Save without leaving the feed. Comment "@mindzone.me save it" under any post and it lands in your library on its own.
• Sharing with an expiry date. Share links close themselves after 24 hours. Private is the default, not a setting you have to find.