I run a mobile phone retail shop and need a cohesive digital solution that covers both point-of-sale and online presence. On the Android side, I’m looking for a billing app that lets my staff quickly create invoices while automatically updating: • Inventory management – real-time stock levels, low-stock alerts, and barcode scanning support • Customer database – add new shoppers on the fly, view purchase history, and enable loyalty notes • Sales reporting – daily, weekly, and monthly summaries with export to CSV/PDF The companion website should mirror key data (inventory, customer accounts, and sales dashboards) and present a clean, minimalist look that feels fast on both desktop and mobile browsers. A simple storefront or catalogue section is enough right now; the priority is a lightweight interface that’s easy to navigate and ties directly into the shared database. I expect: 1. Wireframes or visual mock-ups for approval before development 2. A functional prototype of the Android app, followed by a polished, production-ready APK 3. Website built with a modern framework (React, Vue, or similar) and deployed on my hosting 4. Source code, clear documentation, and a brief hand-off session so my team can maintain basic tasks Syncing data between the app and site can be handled via a RESTful API or Firebase—whichever you feel suits performance and future scaling best. Clean architecture, intuitive UI/UX, and reliability are more important to me than flashy extras.