Is CryptoPay free?

Could you please clarify for me if CryptoPay is indeed a free service? I've heard some rumors that it doesn't charge any fees, but I want to make sure that this is accurate. Are there any hidden costs or fees that I should be aware of? Do I need to pay for deposits or withdrawals? Additionally, is there a monthly subscription fee for using CryptoPay? I'd appreciate it if you could provide a detailed breakdown of any potential costs associated with this platform. Thank you in advance for your clarification.