You can choose to install in your production org or a sandbox. Either way, you get a Free 30 Day trial of Chargent, with no obligation. All trials include our phone and email technical support to get you up and running.
(Note: Sandbox installations allow access to our premium features like Payment Console with no license key. All standard Chargent features, including payment gateway integrations, recurring billing, and payment request are available during the trial in production).