Two million students, zero ad spend.

Penseum started as an AI study tool and became a real-time AI tutor that talks, sees what you're working on, remembers what you struggle with, and draws when words aren't enough.

Version one

The first Penseum made flashcards, quizzes, and full courses out of whatever you uploaded. Students loved it. It grew past 2 million users organically. One creator mentioned it and we got 20,000 signups in a single day.

It also taught us something uncomfortable. Generating content isn't teaching. It's being a helpful assistant. People came when they had an exam and left when it was over. Retention was flat because the product was episodic.

The detour

We pivoted to a product called Quenla, an AI that watched session recordings and told you where users got stuck. It was a good idea built from scratch, which meant no distribution and no users. We learned fast and came back.

Version two

The real thesis was always one-on-one tutoring. It's the most effective way to learn anything, and only the wealthy can afford it. So we built the tutor. Voice, memory, vision, and visual tools, running at sub-second latency, so it feels like a person sitting next to you rather than a chatbot you type at.

The AI tutor launched in January 2026. In its first five weeks it ran more than 15,000 tutoring sessions, and students who spent ten minutes with it came back at three times the rate of everyone else.

Why it matters

I'm proud of what we built and prouder of who uses it. Most of those students are in places where education is the only way out.

Try it at penseum.com.