BusinessCard

A SwiftUI iOS + watchOS app that creates and shares digital business cards with QR codes, quick share actions, customization, and contact tracking. Data syncs across devices via iCloud.

Platforms

• iOS 26+
• watchOS 12+
• Swift 6.2

Features

My Cards

• Create and browse multiple cards in a carousel
• Create new cards with the "New Card" button
• Set a default card for sharing
• Preview bold card styles inspired by modern design

Share

• QR code display for vCard payloads
• Share options: copy link, SMS, email, WhatsApp, LinkedIn
• Track shares: Record who received your card and when
• Placeholder actions for Apple Wallet and NFC (alerts included)

Customize

• Theme picker with multiple color palettes (Coral, Midnight, Ocean, Lime, Violet)
• Layout picker for stacked, split, or photo style
• Edit all card details: Name, role, company, email, phone, website, location
• Delete cards you no longer need

Contacts

• Track who you've shared your card with
• Search contacts using localized matching
• Shows last shared time and the card label used
• Swipe to delete contacts

Widgets (Preview Only)

• Phone widget preview mock
• Watch widget preview mock

watchOS App

• Shows the default card QR code
• Pick which card is the default on watch
• Syncs with iPhone via App Groups

Data Sync

iCloud Sync (iOS)

Cards and contacts are stored using SwiftData with CloudKit sync enabled. Your data automatically syncs across all your iPhones and iPads signed into the same iCloud account.

iPhone to Watch Sync

The iPhone app syncs card data to the paired Apple Watch via App Groups. When you create, edit, or delete cards on your iPhone, the changes appear on your watch.

Note: The watch reads data from the iPhone. To update cards on the watch, make changes on the iPhone first.

Architecture

• SwiftUI views are presentation only
• Shared app state uses @Observable classes on @MainActor
• SwiftData for persistence with CloudKit sync
• Protocol-oriented design for card data, sharing, contact tracking, and QR generation
• String Catalogs (.xcstrings) for localization (en, es-MX, fr-CA)

Project Structure

• BusinessCard/Models — SwiftData card/contact models
• BusinessCard/State — observable app state (CardStore, ContactsStore)
• BusinessCard/Services — QR generation, share URLs, watch sync
• BusinessCard/Views — SwiftUI screens and components
• BusinessCard/Design — design constants and semantic colors
• BusinessCard/Protocols — protocol definitions
• BusinessCardWatch/ — watchOS app target and assets

Configuration

Required Capabilities

iOS Target:

• iCloud (CloudKit enabled)
• App Groups (group.com.mbrucedogs.BusinessCard)
• Background Modes (Remote notifications)

watchOS Target:

• App Groups (group.com.mbrucedogs.BusinessCard)

CloudKit Container

iCloud.com.mbrucedogs.BusinessCard

Notes

• Share URLs are sample placeholders
• Wallet/NFC flows are stubs with alerts only
• Widget UI is a visual preview (not a WidgetKit extension)
• First launch creates sample cards for demonstration

Running

Open BusinessCard.xcodeproj in Xcode and build the iOS and watch targets.

Tests

Unit tests cover:

• vCard payload formatting
• Default card selection
• Contact search filtering
• Create, update, delete cards
• Contact tracking (new and existing contacts)
• Theme and layout assignment

Run tests with Cmd+U in Xcode.