After a Free No Commitment , No Credit Card 30-Day Trial, SFTP Gateway SaaS is available for $9 a user per month.  Standard Support for product setup and basic troubleshooting via email is Free with an average response within ~ 24 hours Monday – Friday, 8AM – 6PM ET. EULA:  https://www.thorntech.com/eula/SFTP-Gateway-EULA-2022-10-25.html