01/

Interactive Study Guides
for University-Level Learning

Explore Our Apps
Built by Aras Zirgulis, PhD|15+ Years Teaching Economics|ISM University
02/

LEARNING TOOLS

03/

FREE STUDY GUIDES

Clear, concise explanations of key economics concepts — from supply & demand to game theory. Written by a PhD economist.

Browse All 12 Guides →
05/

THE STORY

After 15+ years of teaching economics, I noticed a troubling pattern: students weren't reading their textbooks. Static pages filled with dense text simply weren't engaging the digital generation.

I created these interactive learning tools to meet students where they are — on their phones, with dynamic content that responds to their touch.

The goal? Make learning economics and logic as engaging as the apps they use every day.

Kastalia comes from The Glass Bead Game, referencing someone who once devoted his life to academia, but left to engage the real world.

15+
Years Teaching
1000s
Students Helped
30+
Interactive Models

LET'S CONNECT

Follow for education tips, app updates, and economics insights

ACADEMIC CREDENTIALS
Aras Zirgulis, PhD

MISSION

To transform education by creating interactive, engaging learning experiences that students actually want to use. Every student deserves access to high-quality educational tools that make complex concepts accessible and enjoyable to learn.