They publicly list major clients, including household names like NBC Sports, Aberdeen, and various global news agencies. Security Concerns (CVEs) vs. Scams
To ensure you are using the real product and not a fraudulent imitation: filecatalyst+scam
UDP-based acceleration requires specific firewall configurations. If a user tries a trial and cannot get it to work due to network restrictions, they might assume the software "doesn't work" as advertised. They publicly list major clients, including household names