Thanks for getting in touch with Education.com. Many of the resources on our site are available for free, but we do offer Premium Workbooks (themed collections of curriculum-based worksheets) and an Education.com Plus membership (which gives members unlimited access to all of our Premium Workbooks) for a fee. I'm including both links in the "Resources" section below so you can browse and learn more about the features.
Hope this helps! If you have additional questions about any of Education.com's offerings, please contact our customer support team at email@example.com, and I'd be happy to help you further.