Yes! There is a free plan of Papersign. There is also a paid plan that allows for unlimited signatures.
Free plan - Papersign is usable for free, with a limit on how many documents you can have signed per month.
Pro plan - For those that need to send more, the Pro plan allows you to sign an unlimited number of documents. This starts from $20 per month per seat.
Recipients of your documents are never charged for signing the document.
Papersign and Paperform are billed completely separately (you don't need an active Paperform subscription to use Papersign, or vice versa), however the products are already integrated in terms of functionality and work well together to create end-to-end workflows.
You can see more detailed pricing information at paperform.co/products/papersign