E commerce app

I need a complete e-commerce solution that works seamlessly as a responsive website and as native apps for both iOS and Android. The storefront sits at the heart of the build, but community interaction is just as important, so the experience must feel closer to a social network than a traditional online shop.

Core features I absolutely require:
• User profiles so shoppers can create an identity, follow others and save their favourite items.
• A real-time messaging system for buyer–seller and user-to-user conversations.
• An activity feed that surfaces new products, follows, likes or comments to keep the community engaged.

Please design, develop and deploy the web front-end, the two mobile apps and whatever lightweight admin tools are necessary for me to manage products, orders and users. The finished product should pass App Store and Google Play submission standards and load quickly in modern browsers.

If you have a proven track record with e-commerce stacks, social features and publishing to both stores, I’d love to see links to similar projects along with your proposed tech stack and timeline.