> ## Documentation Index
> Fetch the complete documentation index at: https://cometchat-22654f5b-docs-rn-guide-message-privately.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Expo Integration

> Expo Integration — CometChat integration guide.

Our React Native UI Kit does not work with Expo GO since it requires some custom native modules. Also, expo does not recommend using Expo GO for building production grade apps. So in order to use our UI Kit in an expo app you need to use [development builds](https://docs.expo.dev/develop/development-builds/introduction/). You can follow [this](https://docs.expo.dev/guides/local-app-development/) official Expo guide for more details.

The UI Kit requires a few permissions to run so you need to make some changes in your `app.json` file. You need to add the below `permissions` block inside `android` block of the `app.json` file.

<Tabs>
  <Tab title="app.json">
    ```json theme={null}
    "permissions": [
      "READ_EXTERNAL_STORAGE",
      "WRITE_EXTERNAL_STORAGE",
      "VIBRATE",
      "INTERNET"
    ],
    ```
  </Tab>
</Tabs>