Yes, both GitHub and Hygger offer a Free Trial.
GitHub is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
Hygger is designed for Large Enterprises, Medium Business and Small Business.
Pricing for GitHub Starts at $4/User/Month whereas for Hygger Starts at $7/User/Month when Billed Yearly.
Some top alternatives to GitHub includes LiveCode, Codeanywhere, Visual Studio IDE, CodeinCloud, GitLive, Microsoft Azure, GitLab, CodeSee and Bitbucket.
Some top alternatives to Hygger includes Quickbase , Smartsheet, ClickUp, Zoho Projects, Wrike, TeamGantt, monday.com, Teamwork, ProjectManager.com, ProWorkflow, Workep, Projectworks, WiseTeam, Quick Base, Height and Project Insight.