Strava app disappeared from Apple Watch

Do you have an older model Apple Watch? I have the same problem on my Apple Watch series 2. I believe it's because the series 2 watch only supports up to watchOS 6.3, and the Strava app requires watchOS 8.0 or later.

Hello anne-marie31,  

Welcome to the Apple Support Communities.  

The app may have been removed from your device. You can follow these instructions to install the app again: Download apps on your Apple Watch.

If the instructions above do not work out, you may want to contact the app developer directly for information about supported apps, complications or widgets for Apple Watch: How to contact an app developer.

All the best!

What version of watchOS are you running?