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Iterus

Who Is Behind Iterus

Iterus is the software brand of SUN Professionals s.r.o., a company trading since 2005. Software under the Iterus brand has been built since 2025 — three of the products built since then have their own case studies with numbers from the repositories.

What have we built?

We build production web and AI applications — Next.js, TypeScript, PostgreSQL/Supabase, Claude and OpenAI API integrations. What that looks like in practice is shown by Innea (AI support with a crisis layer), Innea Pro (invoicing under Czech rules and health-insurer billing) and Legacy You (a native mobile app for seniors, pre-launch).

Who is behind it?

Iterus is run by Tomáš Kučera. Technology has always interested me, and I wanted to build my own applications for years — running a business never left the time for it. Language models and tools like Claude Code and Codex changed that: the path from intent to a running application got short enough to be worth taking. I started with tools for my own company, where I knew the problem best and carried the cost of any mistake myself. They worked, so I kept going — and Iterus came out of it.

How do we work?

We work AI-native: delivery is accelerated with Claude Code and Codex, and quality is secured by automated tests, independent code review and specialists on demand.

A detailed walkthrough of the whole process — who reviews, who takes over the project, where the data lives — is on the How we work page.

Frequently asked questions

How big is the team?

The core is one person — the project's technical lead — with AI tools (Claude Code, Codex); quality is secured by independent code review. What that means in practice is described in the Innea and Legacy You case studies: who decides, who writes the code and who verifies the result against reality. For specialised parts — legal text, for instance — we bring in specialists on demand, and we say so up front.

How long has the company existed?

SUN Professionals s.r.o. has traded since 2005; software under the Iterus brand has been built since 2025. The company's continuity is on file in the commercial register; judge the software experience by the three products with case studies on this site — live or pre-launch, with numbers from the repositories — not by the company's age.

What do you specialise in, and what don't you do?

We specialise in web and AI applications and in connections to Czech systems — ARES, invoicing, health insurers — the ones Innea Pro is built on. What we don't do — banking core systems, penetration testing, medical devices, large enterprise migrations without a dedicated team — we say up front. The full list of both is on the Services page.