GitHub offers Free Trial, but supastarter does not.
supastarter is designed for Large Enterprises, Medium Business and Small Business.
GitHub is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
Pricing for supastarter Starts at $49 whereas for GitHub Starts at $4/User/Month.
Some top alternatives to supastarter includes GitHub, 8base, Busywork, Codeless, CitizenDeveloper, SuperDev Pro, CodeTruck, Appbase.io and The m-Power Development Platform.
Some top alternatives to GitHub includes LiveCode, Codeanywhere, Visual Studio IDE, CodeinCloud, GitLive, Microsoft Azure, GitLab, CodeSee and Bitbucket.