Yes, both Freshdesk and Slemma offer a Free Trial.
Freshdesk is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
Slemma is designed for Medium Business and Small Business.
Pricing for Freshdesk Starts at $15/User/Month when Billed Yearly whereas for Slemma Starts at $89/Month when Billed Yearly.
Some top alternatives to Freshdesk includes Zoho Desk, Zendesk Support, ManageEngine ServiceDesk Plus, SeamlessDesk, LiveAgent, HelpDesk, SysAid, HubSpot Service Hub, Salesforce Service Cloud, CRMdesk, Helpspot, Sitehelpdesk and Trakdesk.
Some top alternatives to Slemma includes Alteryx, iDashboards, DataHero, Databox, DashThis, Klipfolio Dashboard, myDATA3, Easy Insight, AppInsights and Analytics Canvas.