Onion Academy
洋葱学院
Onion Academy (洋葱学园, formerly Onion Math 洋葱数学) is a K-12 edtech company founded in late 2013 by Yang Linfeng and team, positioning itself as a "learning experience design company" rather than a conventional online tutoring service . It built its reputation on animated, self-paced interactive courses for middle-school math, later expanding to cover all nine subjects in junior and senior high school .
The company's approach centers on human-computer interaction over live-streamed lectures, with roughly half its thousand-plus staff in R&D split evenly between technology and content production . It has accumulated over 500 billion data points on student interactions to refine its teaching sequences . FreeS Fund (峰瑞资本) participated in every round from Series A through D, with other investors including Legend Capital, Tencent, and春华资本 . The firm rebranded from Onion Math to Onion Academy in December 2019 to signal its full-subject ambition , and more recently has been exploring AI-powered "private tutor" agents built on large language models .
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Coverage
FreeS Fund China-US Venture Forum Session 2 is still open for registration; FreeS Fund receives multiple recognitions from Langchao New Consumption, Joy Capital, and Qiming Technology & New Voice Innovation Service
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峰瑞资本·
![The First FreeS Fund Open Day Is Here: If You're Thinking About Coming Back to China to Work or Start a Company, Come Hang Out at FreeS Fund
---
In recent years, we've noticed more and more people overseas considering a return to China — whether to join a startup, start their own, or simply explore what's happening on the ground. If you're one of them, we'd love to meet you.
FreeS Fund is hosting our first Open Day for returnees. No rigid agenda, no pressure. Just a chance to chat with our team, hear what we're seeing in the market, and share what you're working on or thinking through.
**When:** [Date]
**Where:** FreeS Fund office, Beijing
**Who should come:** Anyone currently based overseas who's considering moving back to China for work or entrepreneurship
Space is limited. If you're interested, drop us a line at [email] with a quick note on your background and what you're exploring.
Looking forward to meeting you.](/_next/image?url=https%3A%2F%2Fkkcktdhgzddmdjdjoenc.supabase.co%2Fstorage%2Fv1%2Fobject%2Fpublic%2Fmedia%2Fimages%2F45f83c6a-7c35-4040-ba2d-210c7948ac95%2F3e49df2ae02b.jpg&w=384&q=75)
