Welcome to BlitzFin
What BlitzFin is, who's behind it — and why "set it up once, then forget it" is the standard we hold ourselves to.
Along with the new website, we're starting this journal: notes from the engine room of BlitzFin. This is where we write about updates and milestones, about the decisions behind the product — and occasionally about why we deliberately chose not to build something. The fitting first entry is an introduction: what is BlitzFin, and who is behind it?
Why BlitzFin exists
Owners, developers, and project managers in German construction run their cost controlling mostly in Excel. Not out of preference, but because the alternatives are too heavy, too expensive, or too far removed from day-to-day work: Bechmann, RIB, and California are built for large corporations. Excel is built for no one. In between sits a gap — and that's exactly where BlitzFin lives.
In concrete terms: one project room per construction project, a dedicated email inbox per project, semi-automatic extraction of incoming invoices, and DIN 276 — the German construction cost standard — built in as the default rather than a footnote. Live in 5 minutes is not a marketing slogan but our minimum bar: if a new user needs longer to get their first project running, we have failed.
Who's behind it
BlitzFin was created between 2019 and 2025 by a founding team that laid the groundwork — data model, workflow, DIN 276 logic. Since 2026 it has been run by blue media labs GmbH, an independent operator studio based in Hamburg and Hanover: small, focused, with product, engineering, and customer contact in one pair of hands. That has consequences we communicate openly — no sales organization, no endless roadmap of marketing promises. In return: short paths and fast decisions.
BlitzFin did not emerge in a vacuum. The first project room, the first DIN 276 reports, and the first hard questions from real practice came from Stadtblick Architekten in Hamburg — development partner from day one and an active user to this day. Much of what looks like software pragmatism in the platform is in fact the second or third iteration following a concrete question from their daily project work. The formal version of this story lives on the About page; here in the journal you get the workshop cut.
Set it up once, then forget it
If there is one sentence we measure every release against, it's this: you hook BlitzFin into your project once — and never have to think about it again. Invoices flow into the project inbox, get extracted and assigned to cost groups, and the cost status stays current without anyone updating a spreadsheet on Friday afternoons.
With every release, more automation takes over the manual work, and AI increasingly has a seat at the table — as a reliable helper, not a buzzword. In the medium term, BlitzFin will open up to AI assistants via MCP: your project status becomes queryable truth, whatever tools you otherwise use. What is a dashboard today can be a single sentence to your own assistant tomorrow.
What comes next here
Alongside the journal, we're building out the Guide section — foundational knowledge on construction cost management, in plain language and without reciting standards. Most of it starts in German (see the Ratgeber), with English articles to follow where they make sense — beginning with an introduction to DIN 276 for readers outside Germany.
And if you'd rather see BlitzFin for yourself right away: there's a fully functional demo project room with sample invoices — no sign-up, no sales call.