Cross-Platform E-commerce App Development

The task is to build a full-featured, cross-platform mobile application for an online store that must feel completely native on both iOS and Android. I need a single code-base solution—Flutter, React Native or a comparable framework is fine—as long as performance and UI polish match platform standards.

Core features include a browsable product catalogue, intuitive search & filtering, secure user accounts, a streamlined cart/checkout flow, and integration with a mainstream payment gateway. Clean architecture, scalable state management and clear documentation are essential so future updates remain straightforward.

Please focus your proposal on relevant experience delivering cross-platform e-commerce apps: the frameworks you used, any notable performance optimisations, and examples that are live on the App Store or Google Play. A concise outline of how you typically structure such projects (from initial setup through testing and launch) will help me gauge technical fit.

Deliverables
• Production-ready app packages for iOS and Android
• Well-commented source code in a private repository
• Setup/read-me for local builds and CI pipeline
• Brief hand-over session or video walkthrough covering deployment

Acceptance criteria will be a smooth checkout from product selection to confirmed payment on both operating systems, with no critical bugs reported during a one-week user test window.