With any Premium Plan, you can compare the results of multiple campaigns to see what content your customers like.
From the menu, select Campaigns → Compare Campaigns.
Click on the campaigns you want to compare and then click the 'Compare campaigns' button.
Click on the campaigns you want to compare and then click the 'Compare campaigns' button.
The results are displayed in a graph and summary chart format. You can toggle displays, view rankings and averages.
For more information, please check out the Step-by-Step Guide: Campaign Comparison.