Billie

Every month-end turning into an invoice-wrangling nightmare, with filenames like 'invoice_FINAL_2.pdf' scattered across three folders? Billie is a macOS application designed to automate invoice management from the moment a PDF lands in your downloads folder. It uses machine learning to automatically rename and move invoice files into a tidy structure, or mail them directly to your accountant so you don't have to dig them up one at a time.

Billie acts as a genuinely useful personal invoice assistant, supercharging invoice management on macOS for freelancers, consultants, and anyone tired of their bookkeeping eating into their weekends. It's the kind of small automation that compounds — five minutes saved per invoice turns into entire evenings reclaimed by the end of the quarter.