Punchly: Punch in, Get rewarded.

Digital punch-card loyalty rewards platform for small businesses | Built for StormHacks 2025

Replace physical punch cards with NFC-powered digital loyalty. Customers tap to earn rewards, merchants track engagement in real-time.

Table of Contents

• Executive Summary
• The Problem
• Our Solution
• Technology Stack
• Features

Executive Summary

Small merchants still rely on physical loyalty artifacts (punch cards, stamp cards, plastic rewards cards). Those artifacts are fragile, untrackable, and give merchants no analytics — while large brands run digital programs that measurably increase revenue.

Punchly is a unified digital loyalty platform that replaces all traditional punch/stamp/rewards cards with a single mobile + web product: customers tap an NFC tag to collect stamps or points, merchants manage programs in a simple admin panel, and both sides benefit from better tracking, anti-fraud, and measurable ROI.

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The Problem

Physical loyalty systems are failing small businesses:

• Paper/punch cards and plastic rewards cards are easy to lose, easy to game, and provide zero analytics
• Small merchants can't afford or don't have the expertise for complex loyalty SaaS used by big retailers
• Fragmented customer experiences (many physical cards, many programs) reduce engagement and adoption
• Merchants lack simple, affordable tools to measure program ROI or re-engage customers efficiently

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Our Solution

Replace the entire physical loyalty stack with one digital platform:

• Multiple reward formats - Stamp/punch cards, points systems, single-reward programs
• NFC tap - Native mobile scanning with QR fallback for universal coverage
• No-code admin panel - Campaign creation, analytics, and customer re-engagement
• Low-cost & secure - Privacy-conscious, fraud-resistant architecture

Components

1. Mobile App - React Native app for customers to scan NFC tags and manage loyalty cards
2. Flask Server - Python backend API for authentication, rewards tracking, and analytics
3. Admin Dashboard - Web-based portal for businesses to manage programs and view analytics

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Technology Stack

Mobile App

• Framework: React Native (Expo)
• Navigation: React Navigation
• UI Library: React Native Paper
• Auth: Supabase

Backend Server

• Framework: Flask 3.0.0
• Database: SQLite3
• Auth: bcrypt
• CORS: flask-cors

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Features

For Customers (Mobile App)

• Tap to Earn - Scan NFC tags at businesses to collect rewards
• Digital Wallet - All loyalty cards in one app
• Progress Tracking - Visual progress bars for each program
• Reward Notifications - Instant feedback on earnings
• Secure Login - Email/password authentication

For Businesses (Admin Dashboard)

• Program Management - Create and customize loyalty programs
• Real-Time Analytics - Track customer engagement and scans
• Customer Insights - View all customers and their progress
• Manual Scanning - Award points for in-store purchases
• Reward Redemption - Simple one-click reward validation

Technical Features

• NFC Deep Linking - Tap-to-open app functionality
• Real-Time Sync - Instant updates across all platforms
• Secure Sessions - bcrypt password hashing, token-based auth
• Offline Support - Local storage with auto-sync
• RESTful API - Clean, documented endpoints