Stop Squinting at Business Cards. Just Scan - Scan Meld

ScanMeld – AI-Powered QR & Business Card Scanner

A production-ready, full-stack mobile app that does it all: scan QR codes in real-time, digitize business cards with AI-powered OCR, generate fully custom QR codes, build link-in-bio pages, and keep users engaged with gamification. Ships with a Flutter mobile app, NestJS backend, and an alternative Laravel backend — both production-ready and fully documented.

✨ Key Features

⬛ QR Code Scanner

• Real-time camera scanning with auto-detect

• Gallery image import scanning

• Supports URL, text, WiFi, vCard, email, phone, SMS, and calendar events

• Scan history with favorites and search

💼 AI Business Card Scanner

• Point your camera at any business card for instant digitization

• OCR via Tesseract.js extracts raw text from the card image

• GPT-4o-mini intelligently parses name, title, company, phone, email, and address

• One-tap save to contacts or export as vCard

✨ Custom QR Code Generator

• Generate QR codes for any content type

• Full style customization: colors, patterns, corner styles, embedded logos, frames

• Download, share, or organize into collections

• Batch QR generation available on Pro and Business plans

🔗 Link-in-Bio Pages

• Create customizable landing pages with a unique slug URL

• Add unlimited links with icons and descriptions

• Theme customization: colors, fonts, layout

• Built-in click tracking and analytics

👥 Contact Management

• Full CRUD with 20+ contact fields

• Import contacts directly from scanned business cards

• Export to vCard or CSV

• Favorites and search

📊 Scan Analytics Dashboard

• Track every QR code scan with rich metadata: device, browser, OS, country, city

• Time-series charts with daily, weekly, and monthly views

• Beautiful visualizations powered by fl_chart

🏆 Gamification & Engagement

• XP points earned for every action: scan, generate, share

• 25 achievements across 7 categories with Bronze to Platinum tiers

• Daily check-in streaks with push notification reminders

• Global leaderboard to drive retention

🤖 AI Assistant

• In-app conversational AI chat via GPT-4o-mini

• Scanning tips, feature guidance, and QR code analysis

• Contact enrichment suggestions

• Per-plan daily credit limits (Free: 3/day, Pro: 50/day, Business: 100/day)

🔐 Authentication & Security

• Email/password with 6-digit OTP verification

• Google Sign-In (Android + iOS) and Apple Sign-In (iOS)

• JWT access tokens (15 min) + refresh tokens (7 days) with rotation

• bcrypt password hashing (12 rounds), rate limiting on auth endpoints

🔔 Push Notifications & i18n

• Firebase Cloud Messaging (FCM) for iOS and Android

• Real-time WebSocket notifications via Socket.io

• Automated streak reminders and weekly summary reports

• 7 languages: English, German, Spanish, French, Italian, Japanese, Portuguese

• Runtime language switching, ARB-based localization

⚙️ Tech Stack

• Mobile: Flutter 3.38+ (iOS, Android, Web) — Riverpod, GoRouter, Dio, mobile_scanner, fl_chart, Lottie

• Backend (NestJS): NestJS 11 + TypeScript — PostgreSQL 16, Redis, BullMQ, Socket.io, Swagger

• Backend (Laravel): Laravel PHP 8.2+ with Filament admin panel and web installer wizard

• AI / OCR: Tesseract.js (OCR) + OpenRouter GPT-4o-mini (AI parsing & chat)

• Auth: JWT + Refresh Tokens, Google OAuth, Apple Sign-In, OTP via AWS SES

• Payments: Apple StoreKit, Google Play Billing — server-side receipt verification

• Storage: Cloudflare R2 (S3-compatible) with presigned URLs

• Infra: PM2 + Nginx, GitHub Actions CI/CD (3 automated workflows)

📦 What's Included

• Flutter Mobile App — 77 Dart files, 34 screens, 19 feature modules, 16 state providers

• NestJS Backend — 64 TypeScript files, 18 modules, 107 API endpoints

• Laravel Backend — alternative PHP backend with Filament admin panel + web installer

• PostgreSQL Database — 25 tables, 2 migration files, seed data (3 plans, 25 achievements)

• CI/CD Pipelines — 3 GitHub Actions workflows (CI, backend deploy, frontend deploy)

• Swagger API Docs — auto-generated, available at /api/docs

• Full documentation and setup guide

💎 Subscription Plans (In-App)

• Free: 5 QR codes, 10 contacts, 1 link page, 10 scans/day, 3 AI credits/day

• Pro — $4.99/month or $39.99/year: Unlimited QR codes, contacts, scans; custom QR styling; analytics dashboard; batch generation; 50 AI credits/day

• Business — $9.99/month or $79.99/year: Everything in Pro plus custom branding, API access, team sharing, white-label QR codes, 100 AI credits/day

• Lifetime plans available: $79.99 (Pro) / $149.99 (Business)

• 7-day free Pro trial on every new signup

• Animated 20% discount upsell screen with countdown timer

📋 Requirements

• Flutter 3.38+ with Dart 3.2+

• Node.js 22+ (for NestJS backend) or PHP 8.2+ with Composer (for Laravel backend)

• PostgreSQL 16+ database

• Redis 7+ instance

• Firebase project (Cloud Messaging / FCM)

• OpenRouter API key (GPT-4o-mini for AI features)

• Cloudflare R2 or S3-compatible storage bucket

• AWS SES account (transactional email)

• Apple Developer and/or Google Play account for IAP