Stefan Trost

I'm the co-founder and product developer of CrystalMath. We are building an awesome math training app for high schoolers in der final year or so and for beginning college students.

Before that, I worked as a web developer at justso, building web apps for companies and startups. I also did a little bit of marketing/sales, as I have a couple of years experience in online marketing.

I'm exited about tech in general and web and mobile applications in particular. I have a passion for startups.

When I'm not in front of a computer screen I like to play the drums, make and drink espresso or just go for a walk. I love to read...mostly non-fiction. And I love to learn.