When someone in your Group Round updates their score, you will see two alerts on your phone to signify that changes have been made. A red dot will be displayed in the corner of the settings menu. Also, the message "Group score updated" will flash across the bottom of the screen for a few seconds.
You can then select the Full Scorecard from the settings screen to see the scorecard with scores from every player in the Group Round.
Group member's scores can also be viewed from the drop down menu on the main scorecard screen.