MostlyQR
Articles
Measured answers about QR codes — what they cost, how they behave, and what the vendors do not put on their pricing pages.
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- Why did my QR code stop working? Four causes and how to tell whichA printed QR code that stopped working has one of four causes. The link inside it tells you which, and whether it's yours to fix. · Dynamic QR codes
- What a dynamic QR code actually costs per monthEntry-plan prices for four QR code vendors, divided by the number of dynamic codes each plan includes — the per-code number none of them print on their pricing page. · Pricing & cost
- Do photo QR codes actually scan? Our decode-test resultsA QR code that is a photograph sounds like it must scan worse. We measured ours with a real decoder — blurred, shrunk, and read the way a reader reads. · Printing & scanning
- How big can the logo on a QR code be? We measured it"30% error correction" is not a logo budget. We punched growing holes in codes at every EC level until a real decoder gave up, and recorded where it broke. · Printing & scanning
- How small can a QR code be printed? The sizes, computedThere is no single minimum size for a QR code. We ran five real payloads through our own encoder for the module counts, then turned those into millimetres. · Printing & scanning
Pricing & cost
What QR code tools charge, measured from their own published pages.
Dynamic QR codes
How editable, trackable QR codes actually work.
Printing & scanning
Getting a code that scans off paper, packaging and screens.
- Do photo QR codes actually scan? Our decode-test resultsA QR code that is a photograph sounds like it must scan worse. We measured ours with a real decoder — blurred, shrunk, and read the way a reader reads.
- How big can the logo on a QR code be? We measured it"30% error correction" is not a logo budget. We punched growing holes in codes at every EC level until a real decoder gave up, and recorded where it broke.
- How small can a QR code be printed? The sizes, computedThere is no single minimum size for a QR code. We ran five real payloads through our own encoder for the module counts, then turned those into millimetres.