To delete fitAnalytica from your Apple Watch, simply press and hold the app icon until all other icons begin to shake. A dash or x symbol will then appear in the top right corner of each application. To uninstall fitAnalytica, tap on the corresponding dash or x symbol, and the app will be removed from your Apple Watch.
To install it again on your Apple Watch, launch the Watch app on your iPhone and navigate to the "Available Apps" section. Look for the FitAnalytica icon and select the install button next to it. After the installation is complete, FitAnalytica will be ready for use on your Apple Watch.