Tried ScanPapyrus when it was offered in 2018 – found the program OK but nothing special & removed it.
(To be fair, have PaperPort Pro, OmniPage Pro & PDF Pro installed: a difficult bunch to compare against.)
In any event: tried to download the current offer, which is a later release, and repeatedly receive the following error message:
Sorry, your session has expired. Return to shop
Will try in another browser (default is Firefox), but wonder whether anyone else has had similar problem, or has suggestions….