I’m setting up a shopping-to-doorstep service that lets Swiss customers fill a single basket with products from Migros, Coop, LIDL and other key retailers, pay once, then receive an automatic email (and, if you choose, an SMS push) telling them exactly when the courier will arrive. To make this happen I need: • A responsive web storefront • Native iOS and Android apps built from the same codebase, or parallel builds if you prefer • Secure sign-in limited, for now, to Email and Google account credentials • A unified catalogue where each product is tagged by store so users can filter, mix and match, and check out in one flow • Payment processing that triggers an automated confirmation complete with delivery time slot • A simple admin panel where I can add stores, import product lists and update pricing Clean architecture, scalable database design and modern frameworks (Flutter, React Native, Laravel, Django—whatever you’re strongest with) are more important to me than the specific stack. I care most about a smooth user experience and a backend that can easily integrate new shops later on. Deliverables are the fully functional website, iOS app and Android app, all source code, and brief deployment instructions so I can push updates myself. If you’ve built grocery or multi-vendor platforms before, I’d love to see them. Let’s discuss the timeline and any questions you have so we can get Swiss shoppers checking out across stores in one seamless tap.