We have developed the “E4473 P” mobile app for the firearm sector in the US. You can find and test it in AppStore: E4473 P.
The goal of the app is to make firearm purchase easier and faster: the app helps firearm buyers to locate gun dealers throughout the US, create a profile, scan a 2D QR code, complete and post the 4473 application.
The app is also used by firearm dealers inside their stores.
The app has maps integration and QR codes scanning. The coding is in Xamarin C#.