This is a unique idea developed by us in node JS. This application sent e-invitation cards via QR code for hall booking that offers guest management. The party host can create e-invitation that has QR code per each guest and other information like guest name and total number of guest allowed per each QR code.
Moreover, Receptionist also can enter specific number of guest attended per each QR code for more accuracy.
The frontend of this application developed in Flutter and backend in node JS.