Yes, both Salesforce Service Cloud and TOPdesk offer a Free Trial.
Salesforce Service Cloud is designed for Large Enterprises, Medium Business and Small Business.
TOPdesk is designed for Individuals, Large Enterprises, Medium Business and Small Business.
The starting price of Salesforce Service Cloud begins at $25/user/month when yearly, while pricing details for TOPdesk are unavailable.
Some top alternatives to Salesforce Service Cloud includes Zoho Desk, Zendesk Support, ManageEngine ServiceDesk Plus, Freshservice, Freshdesk, LiveAgent, HelpDesk, SysAid, Jitbit Helpdesk, HubSpot Service Hub, Help Scout, UseDesk, LabiDesk, AzureDesk, HESK and BoldDesk.
Some top alternatives to TOPdesk includes Freshservice, ManageEngine ServiceDesk Plus, SolarWinds Service Desk, Jira Service Desk, Freshdesk, Teamwork Desk, HelpDesk, Desky, Salesforce Service Cloud, ReadyDesk, Milldesk and Help Desk Premier.