How much does it cost to make a QR code menu?
A QR code menu can cost essentially nothing: if your menu already lives at a stable URL (your website or a hosted PDF), a free static QR code pointing at it costs $0 and never expires — your only real cost is printing the table cards.
A small subscription becomes worth it in two cases: your menu link might change (new website, seasonal PDFs, third-party menu hosts), or you want scan statistics per table or location. That's a dynamic code — QRhubly Pro covers unlimited codes for $7/month, which is usually less than one reprint of table tents.
Avoid 'menu QR' services charging $20–50/month just to host a PDF behind a code — you're paying mostly for hosting you probably already have.