Yes, both GitHub and Ravetree offer a Free Trial.
GitHub is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
Ravetree is designed for Large Enterprises, Medium Business and Small Business.
Pricing for GitHub Starts at $4/User/Month whereas for Ravetree Starts at $29/Month.
Some top alternatives to GitHub includes LiveCode, Codeanywhere, Visual Studio IDE, CodeinCloud, GitLive, Microsoft Azure, GitLab, CodeSee and Bitbucket.
Some top alternatives to Ravetree includes ClickUp, Smartsheet, Miro, Process Street, Wrike, Notion, HubSpot CRM, monday.com, Asana, Teamwork, ProjectManager.com, ProWorkflow, Workep, Projectworks, WirTask, WiseTeam, Quick Base and Project Insight.