Codes on tables arrived everywhere at once for reasons that had little to do with restaurants wanting them, and plenty of rooms have quietly gone back to paper since. The ones where it stuck did two things: they treated the code as a shortcut for the guest rather than a way to cut staff, and they printed the card properly. Here is the whole flow, and what each part costs.
What the guest does, and where they drop out
They point a camera at a card, a menu opens, they add items, a table number is typed or carried by the code, and they pay. Each step loses somebody. The three biggest losses are a code that wants an app installed, a menu that loads slowly on a weak signal, and being asked to create an account before ordering. None of the three is necessary and all three are common, which is most of why guests report disliking this.
The card itself
A table card lives with spilled drinks, hot plates and children. Laminate it, print the code large enough to scan from a seated distance in dim light, and put the table number on the same card so a guest reading it to a server is saying something useful. Expect to replace a few a year for damage, not for menu changes, because the code does not change when the menu does.
Paying at the table
Settling by code removes the last walk of the meal, which is the card machine trip, and it is the part guests are most consistently positive about. What to check is how a split bill behaves, whether a service charge is added and can be adjusted without a conversation, and what happens when one person at the table pays and three want to add another round afterwards.
What it costs to code the room
Two numbers: the cards you print and the reprinting you stop. On the worked example in the sheet on this site, 24 tables with one card each cost £20.40 to code, against 240 paper menus a year at four changes, which is £336.00, leaving £315.60 avoided in the first year. Put your own table count and print prices in; the shape of the answer rarely changes.
Questions people ask about restaurant qr code
Do guests need an app to use a QR menu?
They should not. A code that opens a page in the browser works on every modern phone. Requiring a download is the quickest way to have a table wave at a server instead.
What about guests who will not scan?
Keep paper menus and take orders as normal. Rooms where this works treat the code as an option rather than a policy, and the saving survives, because it comes from the reprint run you no longer do.
Does the code change when the menu does?
No. The code points at a page you edit, so a price change is live in seconds and the card on the table is still correct. That is the entire economic argument for it.