Different rates for different types of users?

Different rates for different types of users?

Dear, is it possible to have a non-paying account for Zoho CRM as not being a commercial profile in our firm, but rather administrative.  My work is limited to updating and inputting client data.  Or are there different rates?
Our company has 4 paying accounts for the moment.
 
Many thanks in advance for your reply.
 
Kind regards,
Katrien