---
title: WKCompanionAppBundleIdentifier
framework: Bundle Resources
role: symbol
role_heading: Property List Key
platforms: [watchOS 1.0+]
path: bundleresources/information_property_list/wkcompanionappbundleidentifier
---

# WKCompanionAppBundleIdentifier

The bundle ID of the watchOS app’s companion iOS app.

## Discussion

Xcode automatically includes this key in the WatchKit app’s information property list when you create a watchOS project from a template. The value should be the same as the iOS app’s [CFBundleIdentifier](../information-property-list/cfbundleidentifier.md).

## See Also

### Identification

- [CFBundleIdentifier](../information-property-list/cfbundleidentifier.md)
- [WKAppBundleIdentifier](../information-property-list/wkappbundleidentifier.md)