A financial calculator on low-code hit its ceiling.
The low-code app had done its job for years: calculations, conditional logic, PDF documents. But it ran slowly, every new feature was painful, and PDFs were generated through a separate paid service — about €50 a month.
We rewrote it from scratch on a modern stack in a few days with agentic development: a faster interface, PDFs generated in-app, Google and Facebook sign-in — and features the old platform simply didn't allow.
What was in the way
- ✗Every new feature was painful
- ✗PDFs were generated through a separate paid service — about €50 a month
- ✗The platform priced per user
- ✗The interface was slow
What the system does
PDFs in-app
Documents are generated inside the app — no external services, no separate bill.
Sign-in
Login with Google and Facebook.
A faster interface
The app responds quickly — free of the old platform’s limits.
Features without a ceiling
Logic the low-code platform would not allow is now added natively.
The engineering behind it.
Rewrite, don't patch
Instead of fighting the platform’s limits — a new app on a modern stack.
A few days
Agentic development: code is written and tested in parallel, so the rewrite took days, not months.
Fewer mistakes
The logic was rebuilt so users work faster and make fewer errors.