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I think the only relevant thing about any kind of scannable code is reliability. QR Codes are widely used and seem to work fine with just about any smart phone.
by jillesvangurp 4y ago
I think the only relevant thing about any kind of scannable code is reliability. QR Codes are widely used and seem to work fine with just about any smart phone. So, they are good enough. Maybe Data Matrix is slightly easier to scan. But it's not really a problem with QR Codes.
- ale42 4y agoBut AFAIK you can't do non-square QR codes. Plus, at small sizes, you lose a lot of space for the alignment marks.
- jillesvangurp 4y agoIf that matters to you, then yes that's a limitation. However, big qr codes are easier to scan. Making them smaller requires higher resolution scanning devices and more careful aiming of the device. So, it's not necessarily that big of a deal. The alignment marks are scaled along with the qr code. So, they don't use more space for smaller codes. The shape limitation is more of an esthetic thing. I don't think people care that much.