Exhibition organizers create for each exhibitor a web app that can be used to scan the visiting card / name tag of visitors who come to the exhibitor's booth.
Google Gemini AI reads the card with 99% accuracy, the exhibitor tags product interests of the visitor and the system sends a 'Thank You for Visiting' email. All this data is stored in a database which only the exhibitor can access.
After the exhibition, the exhibitor downloads the database as a file that can be viewed in Excel.