You can certainly do that for iOS and Android - I've recently launched an application myself which does just that. At least 95% of the code is shared between pl

You can certainly do that for iOS and Android - I've recently launched an application myself which does just that. At least 95% of the code is shared between platforms. There are some desktop bindings available, but they're relatively experimental: https://github.com/ptmt/react-native-macos https://github.com/ptmt/react-native-macos https://github.com/Microsoft/react-native-windows https://github.com/Microsoft/react-native-windows https://github.com/jamrizzi/react-gtk https://github.com/jamrizzi/react-gtk (no code yet, just intent to develop)