Yes, both GitHub and Everhour offer a Free Trial.
GitHub is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
Everhour is designed for Large Enterprises, Medium Business and Small Business.
Pricing for GitHub Starts at $4/User/Month whereas for Everhour Starts at $8.50/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 Everhour includes Connecteam, Smartsheet, clockodo, TimeTracker App, Harvest, My Hours, Timesheets.com, Clockify, TimeTrack, Time Track Bill, Timesheet and Time Tracker by eBillity.