The definition seems to be wide. My 'fintech' startup [0] focuses on automated bookkeeping, but depending on who you ask, automated bookkeeping is or is not regarded financial technology.
Nearly same boat here. We're based in Frankfurt where everyone is talking about FinTech so its natural to call our Accounting/Bookkeeping/Billing AI Startup [0] a Fintech, but to me initially the term was reserved for startups that process creditcards or do algotrading. I'm content now to use the term as long as its helpful.
This was a homegrown solution by a student that worked for us. It's not auto generated and quite frankly painful to maintain as it just generates this html in php via parsing xml files. We're looking for alternatives at the moment too.
[0] https://www.fastbill.com