React Native isn't officially supported for iOS app development on Windows. While you may create and write the code for your app using React Native on Windows, creating and releasing an iOS app development requires Xcode, Apple's development environment, which is available only on macOS. In order to complete operations like code compilation, app signing, and IPA file creation for the App Store, Xcode is required. There are various alternatives available, albeit they might not provide the same degree of performance and convenience as creating directly on a macOS desktop. These include using a macOS virtual machine or cloud-based services.