Yes, both osTicket and ManageEngine ServiceDesk Plus offer a Free Trial.
osTicket is designed for Individuals, Large Enterprises, Medium Business and Small Business.
ManageEngine ServiceDesk Plus is designed for Large Enterprises, Medium Business and Small Business.
The starting price of osTicket begins at $9/User/Month, while pricing details for ManageEngine ServiceDesk Plus are unavailable.
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 ManageEngine ServiceDesk Plus includes SolarWinds Service Desk, Jira Service Desk, Symantec ServiceDesk, Freshdesk, Zoho Desk, HelpDesk, ReadyDesk, Sitehelpdesk, Help Desk Premier and Scopedesk.