Cross-Platform E-Commerce Mobile App

I want to launch a full-featured e-commerce mobile application that runs smoothly on both iOS and Android. The goal is a polished shopping experience that lets users browse products, add items to a cart, pay securely, and track orders in real time. I’m open to the tech stack—React Native, Flutter, Swift/Kotlin, or another framework—as long as the final build is fast, reliable, and easy to maintain.

Key expectations
• User-friendly interface that matches modern app standards
• Secure authentication, wish-lists, product search and filtering
• Integration with major payment gateways (Stripe, PayPal, Apple Pay, Google Pay)
• Order management for both customers and admin, including push notifications
• Clean, well-commented code plus basic documentation so future updates are straightforward
• Guidance through App Store and Google Play submission to ensure a successful launch

Please share examples of mobile commerce projects you’ve delivered and outline the approach and timeline you’d recommend for this build.