> ## Documentation Index
> Fetch the complete documentation index at: https://docs.reyapp.io/llms.txt
> Use this file to discover all available pages before exploring further.

# Register your iOS app

> Add your iOS app to AppsFlyer and find the AppsFlyer App ID needed in Rey.

Register the iOS version of your app in AppsFlyer.

<Steps>
  <Step title="Add an app">
    In AppsFlyer, open **My Apps** and choose **Add app**.
  </Step>

  <Step title="Choose iOS">
    Select **iOS** and add the app using the matching App Store details.
  </Step>

  <Step title="Confirm the app details">
    Make sure the app is associated with the same iOS app you publish through App Store Connect.
  </Step>

  <Step title="Find the AppsFlyer App ID">
    Open **App Settings → App ID** for the new iOS app and copy the value. You will paste this into Rey when connecting AppsFlyer.
  </Step>
</Steps>

<Tip>
  The AppsFlyer App ID is required for iOS in Rey. It is separate from your AppsFlyer Dev Key.
</Tip>