To cancel your trial of Crunchbase Pro, click on your account in the upper right-hand corner of your screen, then select Account Settings.
Once you’re on the Account Settings page, you’ll see a section called Subscription Management. Click Cancel Trial on the right side of your screen.
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.