I bought a new phone. I had used Google to sync. It did not work. Did not sync. I uninstalled the app from my new phone. Went to my old phone. Logged out of Google sync and logged in with Facebook. Reinstalled app on new phone logged in to sync using Facebook and tada!!! My completed are all coming back. 5/21Love it! Addictive!!! So many options. No issues with the app. Download and enjoy the mind escape .