Is there a free digital business card?

Yes. Scaanme's Lite plan is free at $0 per month and includes one digital vCard with up to 5 services, 5 products, 20 links, and 3 galleries, plus testimonials, business hours, a booking system, and a contact form. It supports 45+ languages and allows up to 50 enquiries per month. Custom domains and branding removal are reserved for paid plans.