Skip to main content
Version: 0.73

Running On Simulator

Starting the simulator​

Once you have your React Native project initialized, you can run the following command inside the newly created project directory.

npm run ios

If everything is set up correctly, you should see your new app running in the iOS Simulator shortly.

Specifying a device​

You can specify the device the simulator should run with the --simulator flag, followed by the device name as a string. The default is "iPhone 14". If you wish to run your app on an iPhone SE (3rd generation), run the following command:

npm run ios -- --simulator="iPhone SE (3rd generation)"

The device names correspond to the list of devices available in Xcode. You can check your available devices by running xcrun simctl list devices from the console.

Specifying a version of device​

If you have multiple iOS versions installed, you also need to specify its appropriate version. E.g. To run your app on an iPhone 14 Pro (16.0) run the following command:

npm run ios -- --simulator="iPhone 14 Pro (16.0)"

Specifying an UDID​

You can specify the device UDID returned from xcrun simctl list devices command. E.g. To run your app with UDID AAAAAAAA-AAAA-AAAA-AAAA-AAAAAAAAAAAA run the following command:

npm run ios -- --udid="AAAAAAAA-AAAA-AAAA-AAAA-AAAAAAAAAAAA"