To use Actionstep after your trial expires, you'll just need to enter your debit/credit card to ensure that you continue to have access going forward. You will see your trial information in a light-yellow banner at the top of your Actionstep system:
To activate your subscription, click on the "Activate now" link in the banner:
An alternative path to the Subscription page is by hovering over your Organization Name in the top-left hand corner of Actionstep, then selecting "Subscription Settings".
Review your monthly subscription information, then simply click "Activate subscription now" and enter your debit/credit card information: