ExpenseMate
Snap the receipt. We'll split the rest.
Visit site →AI engineering studio · Luxembourg
We work with a few companies each year on computer vision and on software that AI agents can use. Our own iOS apps run on the same engineering.
Small, focused iOS apps we build, ship and maintain ourselves.
Snap the receipt. We'll split the rest.
Visit site →A calm step tracker that lives entirely on your iPhone.
Visit site →Count down to the dates and moments you care about.
Visit site →AI-powered negotiation training. Practice real scenarios, get instant feedback.
Visit site →The studio

I'm Tun Keltesch. I started TK MEDIA as an AI engineering studio that ships its own iOS apps. When I take on a partner project, I build it the same way I'd build my own, with ownership, speed and real product thinking.
Tun Keltesch · Founder, TK MEDIA
We do AI engineering with a few businesses each year, when the fit is right. No project tiers, no price lists. Just a conversation.
Selected work: VidaFit, a physiotherapy practice website · Created by Vera, the portfolio of a Vienna-based content creator.
Latest
When an AI agent becomes a user of your software: what it takes to let Claude, ChatGPT or Cursor use a product or internal tool, the permission and write-safety work behind it, where it is premature, and what to check first.
Working on something worth building? Send a note and we'll get back to you.