One QR code or link. Customers rate you one to five. The happy ones get a direct link to review you on Google. The unhappy ones reach you privately, while you can still fix it.
Included in the one plan. No credit card during the private beta.

Demo data. Buddy Boy Barbecue is a fictional business.
Every customer gets the same simple prompt: how did we do, one to five. A high rating gets a direct link to your Google review page while goodwill is still fresh. A low one opens a private comment box that reaches you. Nobody is blocked from reviewing you publicly; the difference is that you hear the complaint too, and in time to respond.
Print it on the receipt, sit it on the table, tape it to the counter, put the link in a text after a job. It works the same everywhere, so you can try a few placements and keep the one that gets used.
Private comments land in your inbox alongside the customer, so a recurring complaint about a wait time or a dish shows up as a pattern instead of a feeling.
Every one of them is in the same plan.