Is Prime free for everyone?

Excuse me, I was just reading through the information about Prime and I was wondering, is Prime free for everyone to use? I understand that it offers a range of benefits and services, but I wanted to clarify if there are any costs associated with accessing these features. I'm particularly interested in the potential for reduced fees and improved trading options that Prime seems to offer. Can you please clarify if Prime is available for free, or if there are any subscription or membership fees involved? Thank you for your time and assistance.