Yes, both ServicePRO and HelpDesk offer a Free Trial.
ServicePRO is designed for Large Enterprises, Medium Business and Small Business.
HelpDesk is designed for Large Enterprises, Medium Business and Small Business.
Pricing for ServicePRO Starts at $22/User/Month whereas for HelpDesk Starts at $29/User/Month when Billed Yearly.
Some top alternatives to ServicePRO includes Freshservice, ManageEngine ServiceDesk Plus, SolarWinds Service Desk, Ivanti Service Manager, Jira Service Desk, Symantec ServiceDesk, Halo Service Desk, Micro Focus Service Manager, HelpDesk, eStreamDesk, Milldesk and Sitehelpdesk.
Some top alternatives to HelpDesk includes Zoho Desk, Zendesk Support, ManageEngine ServiceDesk Plus, Freshservice, Freshdesk, SupportBee, Teamwork Desk, SysAid, Jitbit Helpdesk, Snappy, Helpspot, ReadyDesk, HelpdeskEddy, Help Desk Premier, Support.cc by 500apps and BoldDesk.