A judgement you only make once.

The categoriser is the heart of the product: the part that turns a bank feed into books that mean something.

Your vocabulary, not ours. The category picker offers the labels your ledger has already seen — there is no imposed chart of accounts, because a starter list is a guess about somebody's business that they then have to live with.

Rules, live today. A rule is born from a real line in your books: point at an unexplained line, say what should happen to lines like it, and every future match files itself. Rules apply in list order, run-all is a button, and re-running it decides nothing twice — that is a guarantee, not a coincidence. Retired rules stay on the page, labelled, so "we turned it off" never looks like "there was never a rule".

Test before apply. A rule shows you exactly which lines it would touch before it touches them — the blast radius is visible, always, in build now for retroactive application to existing lines.

AI filing, out of the box. in build now An AI categoriser will read each new line and file it under your vocabulary; you review and correct, and corrections stick. A matching rule always beats the model — determinism outranks cleverness — and there is no homework: you will never be asked to validate generated code to use your own ledger.