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A code on a screen can be redrawn. A code on a thousand menus cannot. These are the settings that decide whether yours still scans a year from now — and what we set by default.
3 MB anonymous, 10 MB on a free account, 50 MB on Pro. Above that a scan stalls on phone data, so a long catalogue is better split than shipped whole.
From about 2 cm on a table tent, 4 cm on a poster read from a metre away. Below 1.5 cm most phone cameras stop resolving the modules.
Medium on screen, High or Highest in print — the higher levels rebuild the code through scuffs, folds and grease. Adding a logo raises it to Highest automatically.
Dark modules on a light ground, with the empty margin left intact. Most "it worked on my desk" failures are one of these two, not the code itself.
Once a code is printed it is out of your hands. The things that usually break one are decisions made before printing — these are the ones we made for you.
The same code, printed once. What changes is the file behind it — which is the difference between a reprint and a two-minute edit.
Prices move, dishes come off. Swap the PDF on Monday and every table tent already on the floor shows the new one.
Schedules change up to the morning of. The badge in a thousand hands keeps working while the running order behind it does not.
A code on the box outlives the revision inside it. Point it at the current manual instead of shipping an erratum.
Send one link that stays valid. When the quote is superseded, replace the file rather than chasing the email.
A window card is printed once and stands for months. The brochure behind the code can follow the price down.
Print the code on a card. Update the PDF before every interview without ordering new cards.
Free is a plan here, not a trial with a clock on it. Three codes stay yours, keep resolving, and never carry an advert. Here is exactly what the paid plan adds.
Your first code is free — and it'll outlive the paper it's printed on.