Our Story

Meet Our Founders

Two Croatian developers revolutionizing access to automotive calculation tools. We believe financial clarity should be accessible to everyone.

Jurica Šinko

Jurica Šinko

Founder & CEO

Varaždin, Croatia

Entrepreneurial Vision

Jurica is a remarkable Croatian entrepreneur who became the youngest registered company director in Croatia at just 18 years old. His proven ability to identify user needs and create accessible digital solutions drives our mission to make automotive financial information available to everyone.

Building User-Centric Platforms

While still a high school student at Varaždin's Electromechanical School, Jurica identified market gaps and founded Kupi Key d.o.o. in March 2012. By 2014, the company had cleared over HRK 1 million in net profit, serving over 300,000 customers worldwide.

"Making complex calculations accessible to everyone. We research extensively, validate thoroughly, and present clearly - ensuring that anyone can understand their financial metrics and make informed decisions."
Marko Šinko

Marko Šinko

Co-Founder & Lead Developer

Lepoglava, Croatia

Technical Excellence

Marko is a Croatian developer with exceptional programming abilities and a passion for creating accessible tools. His expertise in data processing, API integration, and algorithm development ensures that every calculator on our platform delivers accurate, research-based results.

Academic Foundation

B.Sc. Computer Science from Faculty of Organization & Informatics (FOI), University of Zagreb. His 2013 thesis "DBpedia u primjeni" demonstrated early interest in semantic web data - skills he now applies to organizing and presenting complex automotive data.

"Every tool we create is backed by research and presented with transparency. Our commitment to accuracy means regular updates to reflect new guidelines - making our platform a reliable resource."

Our Mission

To break down barriers to automotive financial information. We believe everyone deserves access to reliable calculation tools based on established research and guidelines, presented in an accessible, user-friendly format.

Accessibility

Complex formulas made simple for everyone.

Accuracy

Validated against industry standards.

Transparency

Clear explanations of how results are calculated.