The cross-platform debate used to be about performance. That argument is largely settled. React Native's New Architecture is now the default and removes the old bridge bottleneck, and Flutter's Impeller rendering engine delivers smooth animations on both iOS and Android.

So how do we choose? We look at four things.

1. Your team and your web stack

React Native uses JavaScript or TypeScript and React. If you already have a React web app, you can share business logic, validation, API clients and even some components, and one team can work across both.