<!--
{
  "availability" : [
    "iOS: 13.0.0 -",
    "iPadOS: 13.0.0 -",
    "macCatalyst: 13.1.0 -",
    "tvOS: 13.0.0 -",
    "visionOS: 1.0.0 -"
  ],
  "documentType" : "symbol",
  "framework" : "UIKit",
  "identifier" : "/documentation/UIKit/UIAction/discoverabilityTitle",
  "metadataVersion" : "0.1.0",
  "role" : "Instance Property",
  "symbol" : {
    "kind" : "Instance Property",
    "modules" : [
      "UIKit"
    ],
    "preciseIdentifier" : "c:objc(cs)UIAction(py)discoverabilityTitle"
  },
  "title" : "discoverabilityTitle"
}
-->

# discoverabilityTitle

An elaborated title that explains the purpose of the action.

```
var discoverabilityTitle: String? { get set }
```

## Discussion

The system uses this property to display information about the command. In iOS, the system displays this title in the discoverability heads-up display (HUD). If this property is `nil`, the HUD displays the [`title`](/documentation/UIKit/UIAction/title) property.

In Mac apps built with Mac Catalyst, the system displays the discoverability title as a tooltip.

---

Copyright &copy; 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)