Urgent Physical Goods Ecommerce App

I need a full-featured e-commerce app built as quickly as possible. The store will sell physical goods only, and every design, flow, and integration should push one clear objective: boost sales.

Core expectations
• Slick product browsing with rich images, variants, and real-time stock.
• Fast, friction-free checkout that supports major cards, Apple/Google Pay, and PayPal.
• Secure account area where shoppers can track orders, manage addresses, and save payment details.
• Admin console for product uploads, pricing edits, promo codes, and basic analytics.
• Push notifications (order updates, abandoned-cart nudges, and flash deals).
• Shipping API tie-ins to generate live rates and labels.

Tech is up to you—React Native, Flutter, native iOS/Android, or a proven cross-platform stack—as long as the final build is stable, scalable, and app-store ready. Wireframes and branding assets are ready to share on kickoff. I’m aiming to see a test build within days and a polished release inside a tight sprint, so only reply if you can hit an ASAP timeline.

Tell me your preferred stack, any relevant live apps, and how quickly you can get the first clickable prototype in my hands.