If some third-party Apple Watch apps are no longer displayed after updating to watchOS 27
With watchOS 27, all apps are required to include 64-bit support to ensure the best performance. If a third-party app hasn't been updated for 64-bit support, it won't be displayed on your Apple Watch after you update to watchOS 27.
Keep your apps updated
When the app developer updates their app to include 64-bit support, the app will be displayed again on your Apple Watch. Check for available updates:
Using your iPhone
Open the App Store.
Tap or your photo at the top of the screen.
Tap App Updates, then tap Update next to an app to only update that app, or tap Update All.
On your Apple Watch
Open the App Store and scroll down to the bottom.
Tap Account, then tap Updates.
Tap Update next to an app to only update that app, or tap Update All.
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