Poptagg – Smart Digital Business Card Platform

Poptagg is an innovative digital networking platform that replaces traditional paper business cards with smart, NFC-enabled digital cards. It enables individuals and businesses to share their contact details, social media links, and professional profiles instantly through NFC or QR code technology.

Poptagg bridges the gap between physical and digital networking by combining IoT hardware (NFC cards, QR stickers, and smart standees) with a powerful web and mobile platform. Users can create dynamic, customizable digital profiles that update in real-time — so their shared information is always current.

The platform also promotes sustainability by reducing paper waste and planting a tree with every purchase.

NFC & QR Code Integration: Tap or scan to instantly share profiles — no app required for recipients.

Dynamic Digital Profiles: Users can add contact info, links, social media, and media files; updates reflect live.

Mobile App (Hybrid – Ionic): Unified app for iOS and Android for managing and editing profiles.

Custom Branding & Teams: Businesses can create branded cards and manage multiple team profiles.

Eco-Friendly Commitment: Each purchase contributes to reforestation (tree planted per order).

Scalable Cloud Backend: Supports real-time profile updates, analytics, and lead capture.

Offline Sync & Caching: Using Redis caching for faster data delivery and improved response times.

LayerTechnologyPurposeFrontend (Mobile)Ionic + AngularCross-platform hybrid app for Android & iOS; dynamic UI and NFC/QR scanning.Backend (API)NestJSScalable, modular Node.js framework for REST APIs and business logic.DatabasePostgreSQLRelational database storing user data, profiles, links, and card metadata.Caching / Session StoreRedisUsed for caching frequently accessed data and managing session tokens.Cloud InfrastructureAWS (EC2, S3, RDS, CloudFront, Lambda)Cloud hosting, media storage, database hosting, CDN delivery, and serverless automation.NFC / QR TechnologiesNFC Chips + QR Libraries (zxing, ngx-qrcode)For data encoding and NFC tap/scan integration.AuthenticationJWT / OAuth 2.0Secure user authentication and API access control.Analytics & LoggingAWS CloudWatch / ELK Stack (optional)Real-time monitoring, logging, and analytics.