Does Unibot charge fees?

Excuse me, I was wondering if I could get some clarification on the fees associated with Unibot. Specifically, does Unibot charge any fees for its services? If so, could you please elaborate on what those fees might be and how they are calculated? I'm interested in using Unibot but want to make sure I understand all the costs involved before making a decision. Thank you for your time and assistance.