vCard is the standard electronic business card format (vcf), supporting rich contact information and compatible with most address book apps. MeCard is a simplified format developed in Japan, more compact and suitable for QR code scenarios. Both can be scanned by phones to add contacts directly.
Yes. When a phone scans a vCard or MeCard QR code, it automatically recognizes the contact information and prompts to add it to the address book. Both iOS and Android natively support this feature.
No. All contact information is processed locally in your browser. The QR code is generated locally without sending any data to a server. Your privacy is fully protected.
For simple info (name + phone + email), MeCard is more compact and produces a smaller, easier-to-scan QR code. For more fields (address, company, notes), vCard is more complete. MeCard is recommended as the default choice.
1) Ensure the QR code is large enough and clear; 2) Try switching between vCard/MeCard formats; 3) Reduce the amount of information - MeCard is usually easier to scan; 4) Ensure adequate lighting; 5) Try generating a larger QR code image.