You may notice in your settings something called Data Usage:
This is related to a cool feature we have planned to release in the near future called our Trends Inspector! The trends inspector will show you how your campaigns KPI's are compared to other users of AdEspresso. If you do not authorise the data usage, we will not be able to enable the trends inspector on your account.
In order to be notified when the Trends Inspector is made live in accounts, please keep an eye for article about the release on the Announcements page of our Knowledge Base!