Vorker runs the hire paperwork: quotes from your price book, return checklists, invoices and the chase when kit does not come back. You approve everything.

No. Every quote, invoice, email and text is prepared and then waits for you. You can read it, edit it, reject it, or approve it and schedule it to go out later. Nothing sensitive happens on its own.
Yes. It reads your price list, whether that is a spreadsheet or a PDF, and prices each line the way you would: hire period, delivery, rig and strike. You adjust anything before it goes out, and it learns from what you change.
It holds the delivery list for each hire. You count the return at the tailgate and tell it, or photograph your ticked checklist, and it matches the two. Anything short is flagged by name and followed up.
That is the size it is built for. In high season the paperwork stacks up exactly when there is no time for it. Vorker is for firms of one to five people, not for depots with an office team.
No. You text or talk to it the way you would text the office, and it works inside the tools you already use: your email, your calendar, your accounting. Quotes and invoices arrive as ordinary PDFs.
Tell it at the return count and the charge goes on the invoice as its own line, at the rate from your price book. The customer sees exactly what it is for, and nothing is invoiced before you approve.