# iOS Guidelines

These guidelines describe how to use the iOS SDKs (both the [UI SDK](/docs/service/messaging-in-app/guide/ios-ui-sdk.md) and the [Core SDK](/docs/service/messaging-in-app/guide/ios-core-sdk.md)). To learn how to use the Android SDKs, refer to the [Android Guidelines](/docs/service/messaging-in-app/guide/android-guidelines.md).

![Enhanced In-App Chat iOS Example](https://a.sfdcstatic.com/developer-website/sfdocs/service-cloud/media/messaging-in-app/messaging-ios-device-small.png)