You can download the latest version of TouchCopy from the TouchCopy support pages for both PC and macOS here...
https://www.wideanglesoftware.com/support/touchcopy/
When you purchase TouchCopy, you will receive an email containing an activation code which converts the software from the free trial (demonstration) version to the full version.
You will need to enter the activation code into TouchCopy to to unlock the full version of the program and remove any demo restrictions.