IBM
Yes, both osTicket and BoldDesk offer a Free Trial.
osTicket is designed for Individuals, Large Enterprises, Medium Business and Small Business.
BoldDesk is designed for Large Enterprises, Medium Business and Small Business.
Pricing for osTicket Starts at $9/User/Month whereas for BoldDesk Starts at $8/User/Month when Billed Yearly.
Some top alternatives to osTicket includes Zendesk Support, Zoho Desk, Tidio Helpdesk, Freshservice, Jira Service Desk, Freshdesk, HelpDesk, SysAid, UVdesk, Jitbit Helpdesk, eStreamDesk, ReadyDesk, Spiceworks Help Desk, HESK, BoldDesk and GLPI.
Some top alternatives to BoldDesk includes Zendesk Support, Zoho Desk, Tidio Helpdesk, Freshservice, Freshdesk, Deskero, LiveAgent, HelpDesk, SysAid, Jitbit Helpdesk, Desky, eStreamDesk, EngageBay Helpdesk System, ReadyDesk, LabiDesk and AzureDesk.