If an accountant does your books and you still do the gathering, nobody ever gave you a list of what the gathering consists of. You work it out from the questions that come back.
These are written out properly, and they hold whether or not you ever use any software to do them.
The next ones are per-supplier: where a particular company actually keeps its invoices, and how to get a year of them out without clicking through twelve months by hand. We write one only for a supplier we have really collected from, so they arrive at the speed of real months rather than all at once.
Runs on your Mac. Pay what you decide, including nothing.