LOCALMATE: A Mobile-Based Smart Billing and Customer Management System for Retail Businesses

Small retail businesses often rely on manual bookkeeping practices for billing, customer credit tracking (Udhar/Jama), and record management. These traditional methods are prone to calculation errors, lack transparency, and make financial monitoring inefficient. Although several digital solutions exist, many are either limited to basic ledger management or provide complex accounting features that are difficult for small shopkeepers to adopt. This paper presents Localmate, a mobile-based smart billing and customer management system designed specifically for small retail businesses. The proposed application integrates bill generation, customer record management, credit tracking, and a real-time business dashboard within a single lightweight mobile platform. The system enables digital bill sharing in image and PDF formats and supports wireless printing through connected devices. An offline-first design approach is adopted to ensure usability in areas with limited or inconsistent internet connectivity. By simplifying daily business operations and reducing dependence on manual processes, the proposed system aims to improve financial accuracy, enhance customer management, and accelerate the digital transformation of small retail enterprises.