RetailOS
Complete retail inventory and billing management system.
The Problem
Small retail businesses were managing inventory manually with spreadsheets and paper logs, leading to stock discrepancies, slow billing, and lost revenue.
The Solution
Built a comprehensive offline-first retail management system with real-time inventory tracking, POS billing, supplier management, and detailed analytics dashboard.
Architecture
Clean architecture with Provider state management. SQLite for relational data, Hive for fast key-value lookups. Modular feature-based folder structure.
Challenges
Ensuring reliable offline-first sync, handling complex inventory calculations with batch pricing, and building a responsive UI that works on both phones and tablets.
Results
Deployed to 3 retail stores. Reduced stock discrepancies by 40%. Billing time reduced from 5 minutes to under 1 minute per transaction.