Web and mobile, from one team.

One team covers the whole surface: the web app, both mobile platforms, and the backend underneath them. Nothing is handed to a second vendor at the point where it usually breaks.

What you get

Next.js on the web, React Native and Expo on mobile, sharing a codebase where sharing makes sense.
Real backends: authentication, payments, storage and background jobs, not a prototype running on mock data.
App Store and Google Play submission, including review compliance.
Thirty days of post-launch support, then the code is yours outright.