How can you update your React Native mobile app without requiring a new download?

1 What is React Native?

React Native is a framework that allows you to build native mobile apps using JavaScript and React, a popular library for creating user interfaces. React Native uses a bridge to communicate with the native platforms, such as iOS and Android, and render the UI components using the native APIs. This means that you can write one codebase for both platforms, and still get the performance and look of a native app.

2 How does React Native update?

By default, React Native apps update when a new version is published to the app store and downloaded by users, which can take some time. However, there are cases where you don't need to go through the app store, such as when only your JavaScript code or assets (images, fonts, etc.) are changed. This is because the JavaScript code and assets are bundled into a file that can be replaced at runtime. Additionally, you can use third-party services such as CodePush, Expo, or App Center to distribute your updates over the air (OTA). This enables you to bypass the app store and deliver your updates faster and more frequently.

3 What are the benefits of OTA updates?

Updating your app over the air can offer several advantages, such as the ability to fix bugs, improve performance, and add features without the need for app store approval. It can also reduce the size of your app by downloading only the necessary files for each update, instead of the whole app. Additionally, you can test your updates on a subset of users before rolling them out to everyone and revert them if something goes wrong. Moreover, you can increase user engagement and retention by providing them with the latest and best version of your app.

5 How can you implement OTA updates?

When it comes to implementing OTA updates for your React Native app, you have a few options. Expo's built-in OTA updates feature automatically updates your app whenever you publish a new version to the Expo server. You can also use CodePush or App Center's CodePush service to sync updates with your users' devices, or build your own OTA update solution with the React Native Updater library. All of these provide the ability to customize the update mode, frequency, and rollback behavior, as well as control the update process programmatically.

6 Here’s what else to consider

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