I made a no-code platform for creating physical data collection apps, using QR codes [1]. It does not yet have a self-service config UI though, which limits adoption.
That's why I recently released a Google Forms™ add-on for QR code check-in, based on the platform. This focused use-case makes it easy to provide a fully self-service config UI.
How it works:
1. Create your Google Form as you normally would [2]
2. Activate the add-on if you hadn't already [3]
3. Craft a confirmation email to be sent to each form responder
Upon each form submission, the add-on will send a PDF with a unique QR code (a V4 UUID) to the responder.
Have guests present this code at the event, and record check-ins in bulk using the included QR scanner.
See here [4] for more information, or try the Google Sheets™ version [5] (which doesn't send email).
[3] https://workspace.google.com/marketplace/app/qr_code_ticket_...
[4] https://blog.darkaa.com/qr-code-pass-per-response-google-for...
[5] https://workspace.google.com/marketplace/app/qr_code_pass_fo...