I'm not sure what happened, but other than tracking my steps the app really isn't syncing. I bought a Fitbit specifically to keep track of things but more and more I'm drifting towards an apple watch and iPhone (I've always had an android) none of my friends compete on Fitbit anymore, and anytime I try to invite the friends who are using it to challenges it errors. As usual the original was the best each upgrade ruins what I use the app and the device for