Events live and die by friction at the door. A QR code removes it: one scan saves the date, opens the ticket, or drops a venue pin. No app to install, no typos, no lost emails.
Doors are crowded and lighting is varied. Print codes large (a full screen or A5 poster), keep high contrast, and use error correction H when branding. Always verify the scan on a phone before the event — with QRVolt you can do that in seconds and re-export if needed.