I build mobile apps that ship to the App Store and Google Play, not demos. One codebase in React Native and Expo, both platforms, one release process.
What I have already built: evacuator.me is a tow-truck dispatch platform for Georgia with two live apps - one for drivers, one for passengers - on both iOS and Android. The driver sees a job offer, accepts it, and the passenger follows the driver on the map until the truck arrives. Behind it there is an admin side that watches every order.
What I usually build into an app: sign-up and login, the backend and database behind it, live updates over WebSocket, push notifications, maps and location, payments, sensible behaviour when the connection drops, and an admin panel so you can run the whole thing yourself.
I also take care of the parts people forget: app icon and splash screen, store listing and screenshots, signed builds for both stores, and getting through the review process.
Stack: React Native, Expo, TypeScript, JavaScript, Node.js, Express, PostgreSQL, WebSocket, push notifications.
A note on my rate: I am new to Guru, not new to building software. I have 8+ years behind me and three products running in production. My rate here is below what this work normally costs, because I am building a track record on this platform. You get the same work, I get the first reviews - that is the trade.
We start with a short written brief. I come back with scope, milestones and a fixed price per stage.