Micro QR Code: What It Is and Why Your Phone Probably Cannot Read It
A one-eyed QR code that holds 35 digits and that most phones cannot scan. What a Micro QR code is, the real size math, and what to print when space is tiny.
Oh my Blog !
The holy temple of QR
Static vs Dynamic QR Codes: Which One Still Works in Five Years?
One is permanent, the other depends on a vendor staying alive. Editing, tracking and five-year cost compared, so you can decide in a minute.
All articles
Tech
Practical
QR Code Minimum Size: How Small You Can Actually Go
0.8 x 0.8 in (2 x 2 cm) at arm's length, and even that moves. The distance chart, the module formula, and the 3-minute test before you print.
Practical
QR Code on TV: How to Scan It When Your Phone Won't
The TV shows a QR code and your phone sees nothing? The screen physics, the 60-second method, where each app hides its code, and the typed plan B.
Practical
Do QR Codes Expire? The Honest Answer and What Kills Them
The pattern never expires, but the service behind it can. The 14-day trap, the four kill switches, a two-minute check, and the recovery playbook.
Practical
QR code not scanning? Find the fault in two minutes
The three-step diagnostic, then every cause: contrast, quiet zone, size, print, dead links and expired free plans. With the fixes.
Practical
How to Scan a QR Code: iPhone, Android, Screenshots, Any Screen
Every way to scan a QR code: iPhone, Android, from a screenshot, off a TV or computer, and the fixes when nothing scans.
Tech
Sunrise 2027: What Brands Actually Have to Do, and by When
2027 is coming, but only one EU law actually mandates a QR code. The honest map of what is law, what is voluntary, and what it costs a small brand.
Tech
ChatGPT QR codes: create and manage QR codes with your AI
ChatGPT can draw a QR code, but it is frozen and untracked. The real method: connect your AI assistant to a generator and manage QR codes by chatting.
Use cases
6 Wedding QR Code Ideas That Do More Than Photos
Most couples use a wedding QR code just for photos. Here are 6 ideas that put it to work: guestbook, cash fund, playlist, menu, and RSVP invitation.
Practical
Quishing: How a Fake QR Code Scam Drains Your Account
QR code scams jumped 146% in 2026. See how quishing works, how to spot a fake QR code in seconds, and how to protect your customers.
Marketing
QR Code Pixel: Turn Every Scan Into an Ad Audience
Meta, GA4, Google Ads: add a tracking pixel to your QR codes and find your scanners in your ad campaigns. Print finally becomes targetable.
Marketing
QR Codes, the Communication Super-Heroes
They are small, clever, cute, and will conquer the world. No, not aliens. But almost. QR codes.
History
The Fabulous History of QR Code
Ah, this famous QR code, the guardian of our data! It holds as much information as a member of the intelligence services. It carries up to 7000 numeric characters (that blows your mind, doesn\'t it?).
Practical
QR Code Business Card for Dummies
We don\'t want to be melodramatic, but it\'s a fact, the virtual is increasingly taking over from the Human.
Don't wait for your competitors to think of it before you,
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