Freshdesk has paid plans which enable you to get the most out of your support portal, however, you could always test the waters with our free plan called the Sprout plan.
To activate the free Sprout plan:
Please navigate to Admin -> Account settings -> Plans and billing to choose sprout from the list of plans.
Click on the Select Plan button under Sprout. Note that your total will show $0. Once done, you would be able to see the updated pricing page stating that you are in the free plan.
If you want to add more agents (full-time or occasional agents), you will need to provide your credit card details. by clicking on 'enter' payment details to add more agents or to upgrade your current plan.
After providing your details, kindly click on Change plan to choose the number of agents you want to have. You can refer to this link for a brief comparison of the various plans we offer to make an informed decision.