Who this is
Paul Aierle and Lukas Tomasek are 14 and in class 8d at the Gymnasium Höhenkirchen-Siegertsbrunn near Munich. Together they built KlausurBuddy, an AI app that turns your own study notes into a practice exam based on the official curriculum and grades it in real time. Lukas taught himself to code, first with YouTube tutorials and now mostly with Claude Code, and is in charge of code, product and design. Paul handles strategy, growth and content: he reaches out to journalists and to people he doesn't know, which is also how he landed this podcast. With KlausurBuddy the two took first place in the Education category of the Startup Teens Challenge 2026, beating around 1,500 other teams, and won 10,000 euros in prize money.
Episodes
Numbers from the episode
FAQ
What is KlausurBuddy?
KlausurBuddy is an AI app for students that Paul Aierle and Lukas Tomasek built at 14. You upload your own study material, the AI turns it into a practice exam based on your state's curriculum, including the standard task verbs and difficulty levels, and grades your answers in real time. The motto: write the exam before you write it. To the episode →
What tech is KlausurBuddy built with?
Lukas builds mostly with Claude Code. He uses Supabase as the database, Vercel for the domain and hosting, and Stripe for payments. The exams are generated via the Claude API, because in their view it handles German best. At the time of recording KlausurBuddy ran on Sonnet 4.5. To the episode →
How much does KlausurBuddy cost?
In the episode Paul and Lukas mention monthly subscriptions from 5.99 to 12.99 euros, plus passes: an exam pass for a few weeks, a half-year pass and a full-year pass. According to Paul, a year costs 140 euros. You can find current prices at klausurbuddy.com. To the episode →
Quotes
„Wir werden belächelt, also größtenteils von Lehrern und anderen Schülern ist da jetzt nicht wirklich Positives …““People smile at us. Mostly from teachers and other students, there isn't really anything positive.”
„Also einfach anfangen, es war ein random Wochenende und mir war langweilig und ich dachte mir, hey, komm, ich baue das Ding …““Just start. It was a random weekend, I was bored, and I thought: come on, I'll build the thing.”