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# isWatchAppInstalled

A Boolean value indicating whether the currently paired and active Apple Watch has installed the app.

```
var isWatchAppInstalled: Bool { get }
```

## Discussion

The user can choose to install only a subset of available apps on Apple Watch. The value of this property is <doc://com.apple.documentation/documentation/Swift/true> when the Watch app associated with the current iOS app is installed on the user’s Apple Watch or <doc://com.apple.documentation/documentation/Swift/false> when it is not installed.

The value in this property is valid only for a configured session that has been activated successfully. If the [`activationState`](/documentation/WatchConnectivity/WCSession/activationState) property is available, its value must be [`WCSessionActivationState.activated`](/documentation/WatchConnectivity/WCSessionActivationState/activated). When the session becomes inactive or deactivated, you should ignore the value in this property.

---

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