Yes, both Supportbench and Zendesk Support offer a Free Trial.
Supportbench is designed for Large Enterprises, Medium Business and Small Business.
Zendesk Support is designed for Large Enterprises, Medium Business and Small Business.
Pricing for Supportbench Starts at $32/Month when Billed Yearly whereas for Zendesk Support Starts at $19/user/month when yearly.
Some top alternatives to Supportbench includes Zoho Desk, Zendesk Support, ManageEngine ServiceDesk Plus, Teamwork Desk, ProProfs Help Desk, HelpDesk, CRMdesk, UseDesk, HESK, DeskXpand, CallView 360 and BoldDesk.
Some top alternatives to Zendesk Support includes Zoho Desk, ManageEngine ServiceDesk Plus, Deskero, Support Hub, HelpDesk, Desky, Help Scout, Salesforce Service Cloud, ReadyDesk, Sitehelpdesk, HESK and BoldDesk.