# Deep linking on iOS

> Use deep linking on iOS devices.

Deep links are hyperlinks outside of your application that take a user to a specific location within the application rather than a website. When a user clicks a deep link, the application opens from the designated location, such as a specific scene in a Unity application. For more information about deep links and how to use them, refer to [Deep linking](/engine/6000.7/manual/platform-specific/cross-platform-features/deep-linking.md).

There are two ways to enable deep links for iOS applications: URL schemes and universal links.

For information on how to use deep links and handle them when your application opens, refer to [Using deep links](/engine/6000.7/manual/platform-specific/cross-platform-features/deep-linking.md#using-deep-links).

## URL schemes

A URL scheme specifies a link structure that your iOS application refers to. The device opens the application when the user clicks a deep link that matches the URL scheme structure. To add a URL scheme, use the following steps:

1. Go to **Edit** > Editor > **Player** > **iOS** > **Other Settings** > **Configuration**.

2. Expand **Supported URL schemes** and set the following properties:

   * **Size** to `1`. To support multiple URL schemes, set this to the total number of schemes you want to use.
   * **Element 0** to the name of your URL scheme. Enter only the scheme name, without `://`. For example, enter `unitydl` to open your application when the device processes links that start with `unitydl://`.


**Supported URL schemes settings for iOS.:**
![](/api/media?file=/engine/6000.7/media/images/ios-supported-url.png)

After you build and deploy your application, it opens when the device processes links that start with the URL scheme you configured.

## Universal links

Universal links use `https` URLs. They don't use **Supported URL schemes** in Unity Player settings. To set up universal links on iOS, refer to Apple's documentation on [Allowing Apps and Websites to Link to Your Content](https://developer.apple.com/documentation/xcode/allowing-apps-and-websites-to-link-to-your-content).

In Unity, universal links are handled the same way as URL schemes. When iOS opens your application from a universal link, Unity exposes the URL through [Application.absoluteURL](/engine/6000.7/script-reference/unityengine/application/absoluteurl.md) and [Application.deepLinkActivated](/engine/6000.7/script-reference/unityengine/application/deeplinkactivated.md). For cold start versus running application behavior, refer to [Using deep links](/engine/6000.7/manual/platform-specific/cross-platform-features/deep-linking.md#using-deep-links).

## Additional resources

* [Deep linking](/engine/6000.7/manual/platform-specific/cross-platform-features/deep-linking.md)