My use case is simple timer functionality. Timer is launched from watchOS app and I'd like the user to see timer also in iPhone as activity. The same thing happens when user is using iPhone for launching the timer so it would be user friendly to have both ways to result in the same functionality

My use case would be to serve iPhone customers. I'm not sure if it's possible to build a workout recording and display some metrics to the users such as energy burned, time elapsed etc. Cant find a tutorial on this.

Same here! Thanks for posting this