To cancel your trial of Crunchbase Pro, click on Account in the upper right-hand corner of your screen, then select Account Settings.
From the left navigation, select Subscriptions & Billing.
Under the Subscription Management section, click Cancel Trial.
A window will appear, prompting you to verify that you would like to cancel your Crunchbase Pro license(s) and notifying you until when your license(s) will remain active. To verify your cancellation, click Downgrade to basic.
Note: depending on when you subscribed the message above may appear different.