I want a complete e-commerce application built once and delivered on both iOS and Android. The core of the project is a polished storefront that lets shoppers browse a product catalog, create an account or sign in with an existing one, fill a cart, and pay securely through an integrated gateway. Key expectations • A smooth, native experience on each platform—Swift/SwiftUI or Objective-C for iOS and Kotlin/Java for Android, or a robust cross-framework such as Flutter or React Native if it reaches the same performance bar. • Product catalog screens that load quickly, show variants and inventory status, and allow search and category filtering. • User account management with sign-up, sign-in, password reset, profile editing, and order history. • Payment gateway integration (Stripe, PayPal, or another widely accepted solution) that handles multiple currencies, tokenized card storage, and webhook-based confirmation. • Secure backend APIs (please outline your preferred stack) and admin access so I can add or update products without redeploying the app. • App Store and Google Play submission, including compliance checks, screenshots, and listing copy. Acceptance criteria 1. Both apps pass store review and are live in their respective test tracks. 2. A fully functional checkout flow from product selection to payment confirmation. 3. All user data, payments, and API calls encrypted in transit and at rest. 4. Complete, well-commented source code and build instructions delivered in a private repo. If your experience aligns with these goals, outline your proposed tech stack, timeline, and any similar e-commerce work you can share.