Billie is built for freelancers, small businesses, and anyone who ends each month staring at a folder full of cryptically named invoice PDFs. Rather than a full accounting suite, it is a focused macOS app that automates the mechanical part of invoice admin: extracting the relevant data from each PDF, generating a consistent filename, and placing the file where it belongs. The interface is built around a "Dynamic Ticket" — a small panel that stays out of your way until you summon it with a keystroke, then accepts a dragged invoice or a file opened via the macOS "Open With" menu and services.
The app leans on machine learning for data extraction, so it can pull supplier names, dates, and amounts without you configuring rigid rules first. From there, Destination Groups let you chain actions that run on every processed invoice: moving files into structured folders, sending them to a chosen email address, or both. Filename patterns are assembled by dragging tokens into whatever order you prefer, so the output matches your existing filing conventions instead of forcing a new one.
Billie requires macOS 12.0 or later and is distributed as a direct download from its site, where the developer advertises a 5-star average rating and 100+ users, with ownership dated from 2023. It is a local, native Mac app rather than a web service, which keeps your documents on your own machine. Pricing is presented as a free download; no subscription tiers are detailed on the landing pages reviewed.
