You've finished developing your React Native app and want to deploy it on the Apple App Store and Google Play Store. To do so, you need to prepare various pieces of information such as app name, description, screenshots, version number, bundle ID, developer/publisher profile, and more. You'll also need to follow specific guidelines for each store, including keywords, countries, categories, copyright, and test accounts. Additionally, you'll need to set up your Expo app configurations and build your Android and iOS apps using the `expo build` commands. Once built, you can submit your apps to the stores by following step-by-step guides. Make sure to follow best practices for optimization to boost discoverability, downloads, and ranking.