Billing software built for how mobile shops actually work.
Rinko is an offline-first Windows application for single-store mobile phone shops. It handles billing, IMEI-based inventory, COD orders, mobile recharges, and profit tracking by source, all in one place, on one computer, without needing a reliable internet connection.
Rinko is designed for owner-operated mobile phone shops with 0 to 3 staff, doing between ₹15 lakh and ₹75 lakh in annual revenue. Shops that do not need a large ERP, but that have outgrown a notebook and a calculator.
Most billing software either ignores the realities of mobile shops (COD, recharges, IMEI, profit by source) or charges enterprise prices. Most mobile-specific tools are Android-only and cloud-dependent. Rinko was built to fill that gap: a Windows-native, offline-first tool made specifically for how a mobile phone shop actually runs.
Rinko is built and maintained by a solo developer based in India. It is an independent product, not backed by a large company. Every piece of feedback goes directly to the person who wrote the code.