Guides

Longer posts land here; use-case detail stays on each guide under Use cases.

• How to create a UPI QR for your shop (India checklist)Step-by-step: PSP links, print size, contrast, and testing before you laminate 500 stickers.2026-05-27
• Best QR size for print: a practical distance guideModule size, quiet zone, and lighting—how to avoid unscannable codes on posters and packaging.2026-05-27