Yes, both osTicket and Freshservice offer a Free Trial.
osTicket is designed for Individuals, Large Enterprises, Medium Business and Small Business.
Freshservice is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
Pricing for osTicket Starts at $9/User/Month whereas for Freshservice Starts at $19/User/Month when Billed Yearly.
Some top alternatives to osTicket includes Zoho Desk, Zendesk Support, ManageEngine ServiceDesk Plus, Freshservice, Jira Service Desk, Freshdesk, HelpDesk, SysAid, UVdesk, Jitbit Helpdesk, eStreamDesk, ReadyDesk, Spiceworks Help Desk, HESK, BoldDesk and GLPI.
Some top alternatives to Freshservice includes Jira, SolarWinds Service Desk, Jira Service Desk, IBM Control Desk, Freshdesk, HelpDesk, TOPdesk, ReadyDesk, TechExcel ServiceWise and Scopedesk.