Hey fellow dev! Let’s break down your question clearly: your requirement is fully feasible on Android, but has strict limitations on iOS due to platform policies. Let’s dive into the details for each platform:

Android: Complete Auto-Update Workflow is Achievable #

You can build a full auto-update flow with explicit user authorization, here’s how to approach it:

• Version Check: Host the latest app version number and APK download link on your backend. When the app launches (or on a scheduled interval), fetch this info and compare it with your app’s current versionName (from the Android build.gradle file).
• APK Download: Once the user approves the update, use a library like react-native-fs or the native fetch API to download the APK to the device’s public download directory. Be sure to handle download progress, failures, and retries for a smooth user experience.
• Trigger Installation: You’ll need a small Android native module (or a pre-built one) to send an installation intent. For Android 7.0+, use FileProvider to generate a secure file URI (to avoid FileUriExposedException). Also, request the REQUEST_INSTALL_PACKAGES permission for Android 8.0+ to let the app trigger install actions.
• Key Notes: Always get clear user consent before starting the download, and communicate update details upfront to avoid frustrating users.

iOS: Auto-Install of IPA is Not Allowed #

Apple’s App Store policies and sandbox restrictions block any direct download and installation of IPA files from within your app—this would bypass the App Store’s review and distribution channel, violating their guidelines. Instead, here’s the only compliant approach:

• Version Check: Same as Android—compare your app’s CFBundleShortVersionString (from the iOS Info.plist file) with the latest version hosted on your backend.
• Redirect to App Store: When the user approves the update, use React Native’s Linking API to open your app’s App Store page. The code would look like this:

  import { Linking } from 'react-native';
  const openAppStore = async () => {
    await Linking.openURL('itms-apps://itunes.apple.com/app/[YOUR_APP_ID]');
  };
  

• Why No Auto-Install?: iOS restricts app installation to the App Store, Apple Configurator, or enterprise distribution (which still requires manual user action). Any attempt to automate IPA installation will be blocked by the system, and could lead to your app being rejected from the App Store.

General Best Practices #

• Transparency: Never start updates silently—always show a clear dialog with update notes and let users choose to update now or later.
• Error Handling: Account for network failures, broken download links, and permission denials to avoid crashes or poor user experiences.
• Compliance: For iOS, avoid pressuring users into updates (e.g., permanent pop-ups blocking app usage) as this could violate App Store policies.

内容的提问来源于stack exchange，提问作者Olfat Ghazali