The info is just uploaded to your account, not shared. If it were shared, it would never be on an individual level, just aggregate data (such as x% of our members use the tracker, etc.)
"You may have a fresh start any moment you choose, for this thing that we call "failure" is not the falling down but the staying down." Mary Pickford
"No matter how slow you go, you are still lapping everybody on the couch."