Yes, both Support.cc by 500apps and Deskero offer a Free Trial.
Support.cc by 500apps is designed for Large Enterprises, Medium Business and Small Business.
Deskero is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
Pricing for Support.cc by 500apps Starts at $9.99/Month when Billed Yearly whereas for Deskero Starts at $9/User/Month when Billed Yearly.
Some top alternatives to Support.cc by 500apps includes Zoho Desk, Zendesk Support, ManageEngine ServiceDesk Plus, Freshservice, Freshdesk, Deskero, Teamwork Desk, HelpDesk, SysAid, Jitbit Helpdesk, Snappy, CRMdesk, ReadyDesk, LabiDesk, HESK and BoldDesk.
Some top alternatives to Deskero includes Zoho Desk, Zendesk Support, ManageEngine ServiceDesk Plus, Freshservice, Freshdesk, Teamwork Desk, SeamlessDesk, HelpDesk, SysAid, Jitbit Helpdesk, Desky, ReadyDesk, Trakdesk, LabiDesk, DeskXpand and BoldDesk.