I need a single mobile solution that lets customers do two things with equal ease: book on-site electrical services and purchase related products. The app must be released on both Android and iOS from day one, sharing one code-base if possible to keep maintenance smooth. Core flow for services • Users select an electrical job, pick a convenient time slot, and get instant confirmation. A simple calendar view, real-time technician availability, and push reminders are essentials so no one misses an appointment. Core flow for product sales • A browsable catalogue for home appliances, electrical tools, and spare parts, each with clear photos, specs, and stock status. Shoppers add items to a cart, check out with card, wallet, or COD, and track delivery inside the app. Unified features • One login/profile for both service and shopping history • Secure payment gateway, order status notifications, and rating/review options for both technicians and products • Basic admin panel (web or app) where I can manage service slots, technician assignments, inventory, pricing, promo codes, and receive real-time analytics Tech preference I am open to Flutter, React Native, or similar cross-platform stacks as long as performance feels native and future upgrades stay manageable. Deliverables 1. Source code for Android and iOS builds 2. Lightweight admin dashboard with deployment guide 3. API documentation 4. Testing report covering booking, checkout, and notifications 5. Assistance through initial store submissions If you have a proven track record shipping service-plus-commerce apps, I’d like to see your live samples and hear how you would phase development to hit app store launch quickly yet cleanly.