GitHub offers Free Trial, but Distributed does not.
GitHub is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
Distributed is designed for Individuals, Medium Business and Small Business.
The starting price of GitHub begins at $4/User/Month, while pricing details for Distributed are unavailable.
Some top alternatives to GitHub includes LiveCode, Codeanywhere, Visual Studio IDE, CodeinCloud, GitLive, Microsoft Azure, GitLab, CodeSee and Bitbucket.
Some top alternatives to Distributed includes GoSquared, CloudSocial, Chatter, Google Chat, Teamwork Chat, Team App, Qualified, Workvivo, Commons, Blog To Social, Sociocs and Consider.