create-react-native-app <projectname>

To create an app in Flutter, do one of the following:

Use an IDE with the Flutter and Dart plugins installed.

Use the flutter create command from the command line. Make sure that the
Flutter SDK is in your PATH.

flutter create <projectname>

For more information, see Getting started, which
walks you through creating a button-click counter app.
Creating a Flutter project builds all the files that you
need to run a sample app on both Android and iOS devices.

How do I run my app?

In React Native, you would run npm run or yarn run from the project
directory.

You can run Flutter apps in a couple of ways:

Use the “run” option in an IDE with the Flutter and Dart plugins.

Use flutter run from the project’s root directory.