- vCard
- A widely-used file format for digital business cards, defined in RFC 6350 (vCard 3.0) and RFC 2425/2426. Every modern contacts app reads vCard files and the QR-encoded equivalent.
- .vcf file
- The file extension for vCard records. A .vcf file is plain text containing one or more vCards; opening one in iOS, Android or macOS triggers the Add to Contacts dialog.
- FN field
- The 'formatted name' field in vCard 3.0 — a single human-readable display name shown in most contacts apps. Distinct from the structured N field which lists family name, given name, etc.
- TYPE attribute
- A vCard parameter on phone/email/address fields that labels the entry (e.g. CELL, WORK, HOME). The recipient's contacts app uses TYPE to label the saved entry as 'Mobile' or 'Work'.
- ADR field
- The vCard field for postal addresses, encoded as semicolon-separated parts (PO box, extended, street, locality, region, postal code, country). The tool builds this automatically.
- Add-to-contacts dialog
- The native iOS/Android system dialog triggered when a vCard is scanned or opened. The user sees the contact preview and taps Save to add it to their phonebook.