Yes, both GitHub and Ryver offer a Free Trial.
GitHub is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
Ryver is designed for Large Enterprises, Medium Business and Small Business.
Pricing for GitHub Starts at $4/User/Month whereas for Ryver Starts at $4.67/User.
Some top alternatives to GitHub includes LiveCode, Codeanywhere, Visual Studio IDE, CodeinCloud, GitLive, Microsoft Azure, GitLab, CodeSee and Bitbucket.
Some top alternatives to Ryver includes remonade, ClickUp, Jamm, Microsoft Teams, mi.team, Google Workspace, Glip, Melp, Teams.cc by 500apps, Zellim and Remo Virtual Office.