Quote it, send it, get paid
For the people who do the work and then have to do the paperwork. Quotes clients accept in a click, invoices they can pay on the same link.
Quotes that get accepted
Your client opens a link and accepts with one click. The invoice raises itself the moment they do, so nothing gets forgotten.
Invoices they can pay
Card payment on the same link, a receipt straight away, and polite reminders when something goes past its date.
Retainers that bill themselves
Set it once. It issues on the day you chose, catches up if your server was asleep, and stops when you tell it to.
No client accounts, no portal logins, no chasing people for passwords. Every document lives on its own private link.