1--- 2title: App stores best practices 3description: Learn about the best practices when submitting an app to the app stores. 4--- 5 6import { BoxLink } from '~/ui/components/BoxLink'; 7 8This guide offers best practices for submitting your app to the app stores. To learn how to generate native binaries for submission, see [Creating your first build](/build/setup/). 9 10> **warning** **Disclaimer:** Review guidelines and rules are updated frequently, and enforcement of various rules can sometimes be inconsistent. There is no guarantee that your particular project will be accepted by either platform, and you are ultimately responsible for your app's behavior. That said, you can re-submit your app as needed to address feedback from reviews. 11 12<BoxLink 13 title="Versioning your app" 14 description="Learn how to configure native runtime versions for your apps." 15 href="/build-reference/app-versions" 16/> 17<BoxLink 18 title="App Store presence" 19 description="Manage your Apple App Store metadata from the command line." 20 href="/eas-metadata/introduction" 21/> 22<BoxLink 23 title="Permissions" 24 description="Refine native permissions and system dialog messages." 25 href="/guides/permissions" 26/> 27<BoxLink 28 title="App icons" 29 description="App stores have strict rules for home screen icons." 30 href="/develop/user-interface/app-icons/" 31/> 32<BoxLink 33 title="Splash screen" 34 description="Create a seamless loading experience using with the splash screen API." 35 href="/develop/user-interface/splash-screen/" 36/> 37<BoxLink 38 title="Status bar" 39 description="Configure the native status bar to have high contrast on all screens." 40 href="/guides/configuring-statusbar" 41/> 42<BoxLink 43 title="Localizing your app" 44 description="Prepare versions of your app for different languages and regions." 45 href="/guides/localization" 46/> 47<BoxLink 48 title="Apple: Review guidelines" 49 description="Official Apple guide on preparing your app for App Store review." 50 href="https://developer.apple.com/app-store/review" 51/> 52 53## Responsive design 54 55It's a good idea to test your app on a device or simulator with a small screen (for example, an iPhone SE) and a large screen (for example, an iPhone X). Ensure your components render the way you expect, no buttons are blocked, and all text fields are accessible. 56 57Try your app on tablets in addition to handsets. Even if you have `ios.supportsTablet: false` configured, your app will still render at phone resolution on iPads and must be usable. 58 59> **warning** Apple may reject your app if elements don't render properly on an iPad, even if your app doesn't target the iPad form factor. Be sure and test your app on an iPad (or iPad simulator). 60 61## Privacy policy 62 63Starting October 3, 2018, all new iOS apps and app updates will be required to have a privacy policy to pass the App Store Review Guidelines. 64 65### App privacy questions 66 67Beginning December 8, 2020, new app submissions and updates are required to provide information about their privacy practices in App Store Connect. See [App privacy details on the App Store](https://developer.apple.com/app-store/app-privacy-details/) for more information. 68 69Apple will ask you a series of questions when you submit the app. Depending on which libraries you use, your answers may vary. For example, if you use `expo-updates`, you will need to say **Yes, we collect data from this app** and then you will want to select **Crash Data**. 70