Short, honest answers to the questions people actually have about QR codes — including the ones where the right answer is "don't pay anyone."
Diagnose a dead code in 60 seconds, learn which failures are fixable, and stop it happening again.
The one difference that matters, how to tell which kind you're holding, and a plain rule for choosing.
Print sizes that scan from a chair, lamination gotchas, what to link to, and honest cost math.
Verified 2026 subscription prices, pay-per-scan rates, and the break-even arithmetic between them.