Yes, both HelpDesk and Support.cc by 500apps offer a Free Trial.
HelpDesk is designed for Large Enterprises, Medium Business and Small Business.
Support.cc by 500apps is designed for Large Enterprises, Medium Business and Small Business.
Pricing for HelpDesk Starts at $29/User/Month when Billed Yearly whereas for Support.cc by 500apps Starts at $9.99/Month when Billed Yearly.
Some top alternatives to HelpDesk includes Zendesk Support, Zoho Desk, Tidio Helpdesk, Freshservice, Freshdesk, SupportBee, Teamwork Desk, SysAid, Jitbit Helpdesk, Snappy, Helpspot, ReadyDesk, HelpdeskEddy, Help Desk Premier, Support.cc by 500apps and BoldDesk.
Some top alternatives to Support.cc by 500apps includes Zendesk Support, Zoho Desk, Tidio Helpdesk, Freshservice, ManageEngine ServiceDesk Plus, Freshdesk, Deskero, Teamwork Desk, HelpDesk, SysAid, Jitbit Helpdesk, Snappy, CRMdesk, ReadyDesk, LabiDesk, HESK and BoldDesk.