I’m launching a full-featured e-commerce application and need it built natively for both iOS and Android from a single, maintainable codebase. The core experience must feel seamless and fast, giving shoppers an intuitive way to browse, filter, and purchase products on the go. Key functional requirements • Robust product search with category and attribute filters so users can quickly narrow down a large catalogue. • Secure, fully integrated payment gateway that supports major cards and digital wallets, handling all edge-cases around failed payments and retries. • In-app user reviews and star ratings displayed per product, with the ability for verified purchasers to add their own feedback. Deliverables 1. Production-ready iOS and Android builds submitted to their respective stores. 2. Source code with clear, maintainable structure and comments. 3. Basic setup instructions and environment files so future updates compile without friction. 4. A brief hand-off session or document that explains how to manage products, payments, and reviews. Acceptance criteria will revolve around smooth checkout flow, accurate filter results, and stable performance on recent OS versions of both platforms. Let me know the framework you prefer (React Native, Flutter, or native Swift/Kotlin) and your projected timeline to hit an initial test build followed by final store submission.