May 2026

Mobile app designed to simplify exchanging contact info using QR codes.

• Built a cross-platform mobile app with TypeScript, React Native, and Expo
• Implemented multi-card support, letting users maintain separate contact profiles (e.g. work, personal) and share the appropriate one per QR code
• Generated vCard-encoded QR codes that phone camera apps recognize natively, saving a new contact without any manual entry
• Evaluated vCard against the more compact MeCard format to balance how much contact info a card carries against QR scan reliability