I need a complete mobile solution that lets retail stores monitor inventory, suppliers, and sales across several branches in real time. The app must launch on Android and iOS simultaneously from day one, so a shared-code approach such as Flutter, React Native, or Kotlin Multiplatform is welcome if it keeps performance high. Core requirements • Real-time stock tracking with barcode/QR scan, low-stock alerts, and multi-location sync • Supplier management—purchase orders, invoices, and contact history in one place • Sales analytics—daily and period reports, top-selling items, export to CSV/PDF • Secure login (email, phone, or SSO) and role-based access to protect sensitive data • Scalable cloud back end that can grow from a single shop to many branches • Clean, intuitive UI/UX so staff need minimal training Project expectations 1. Detailed technical plan and wireframes for approval before coding. 2. Functional prototype delivered iteratively so I can test workflows on both platforms. 3. Production build, store deployment assistance, and basic documentation (setup, admin guide, API references). 4. Post-launch support for critical bug fixes during an agreed warranty window. I’m happy to collaborate via GitHub, Jira, or any modern workflow you prefer. If this sounds like the right fit, tell me which stack you recommend, relevant portfolio links, and a realistic timeline to get us from planning to app store release.