Both Flutter and React Native can ship production apps. The decision usually hinges on whether your team is already strong in JavaScript and React, or whether you want a single UI toolkit with consistent rendering.
Flutter’s widget model and performance profile appeal when you want pixel control and fewer “works on iOS but not Android” surprises. React Native’s new architecture and huge npm ecosystem help when you must share code with an existing web app.
Budget for native modules. Bluetooth, background location, and deep payment SDK integrations often need platform code regardless of framework.
Ship a thin vertical slice early: auth, offline stub, push notifications, and one critical user flow. That slice reveals real integration risk sooner than prototypes.
