For Android users, be sure you have the latest updates installed by visiting the Google Play Store, searching for Sharecare, then tapping the 'Update' or 'Install' button (if available).
Ensure that stress tracking is turned on in the App's settings menu and that you are logged into the app. In order to collect sufficient data to provide an accurate analysis, all calls tracked must be over 30 seconds in duration. Ensure you have a good connection to your wireless and/or cellular network.
Apple restricts access within their operating system and so only manual tracking of stress is available on iOS, not via auto tracking on your calls.