Yes, both Freshdesk and GitHub offer a Free Trial.
Freshdesk is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
GitHub is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
Pricing for Freshdesk Starts at $15/User/Month when Billed Yearly whereas for GitHub Starts at $4/User/Month.
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 GitHub includes LiveCode, Codeanywhere, Visual Studio IDE, CodeinCloud, GitLive, Microsoft Azure, GitLab, CodeSee and Bitbucket.