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SCOPE GENERATED·complexity: [███████░░░] 7/10
PROJECTVendorCash - Daily Cash Flow Tracker for Indian Street Vendors
RATIONALEReact Native enables cross-platform deployment for broader reach among Indian vendors. PostgreSQL handles complex financial transactions while Redis caches frequent UPI queries. Firebase Auth provides seamless phone-based authentication familiar to Indian users.
TECH STACK
FrontendReact Native
BackendNode.js with Express
DatabasePostgreSQL with Redis caching
AuthFirebase Auth with phone number verification
HostingAWS EC2 with RDS
ExtrasRazorpay/PhonePe APIs, UPI reconciliation services, Push notifications, Offline-first architecture
MVP FEATURES
✓Phone number authentication
✓Manual cash transaction logging
✓UPI payment scanning via QR codes
✓Basic daily/weekly cash flow reports
✓Simple expense categorization
✓Offline transaction storage with sync
✓Hindi/English language support
DEFERRED (v2)
○Advanced analytics and forecasting
○Multi-location management
○Tax calculation integration
○Bank account reconciliation
○Customer credit tracking
○Inventory management
○WhatsApp integration for reports
TIMELINE
2 weeksDiscovery & Design
8 weeksCore Development
3 weeksUPI Integration & Testing
2 weeksBeta Testing with Vendors
COST ESTIMATE
USD$8,000 – $15,000
INR₹6.7L – ₹12.5L
⚠ RISK FLAGS
!UPI reconciliation APIs have usage limits and costs that may scale quickly
!Target users may have limited smartphone literacy requiring extensive UX testing
!Regulatory compliance for financial data storage in India adds complexity
!Offline-first architecture significantly increases development complexity
SHARE YOUR SCOPE
Public link: stackpick.in/s/mobile-app-daily-cash-flow-2k-0ed9
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