What would make sharing heart-rate and location updates feel useful and comfortable?

Hi, I'm Talal, the maker of HeartRay. It lets approved friends share recent heart-rate readings and location, send letters and stamps, and follow a shared trip. You choose what each person can see, and readings show their original measurement time.

I'd like feedback on the balance between feeling connected and having control. Which moments would you want to share with a close friend or partner, and what would you want the sharing controls to make clearer?

If you try the app, tell me where it was easy—or confusing—to understand who could see an update. Please keep examples general rather than posting health readings or precise locations here. HeartRay is for personal sharing, not diagnosis or emergency monitoring.