Yes, both GitLab and Phabricator offer a Free Trial.
GitLab is designed for Large Enterprises, Medium Business and Small Business.
Phabricator is designed for Medium Business and Small Business.
Pricing for GitLab Starts at $19/User/Month whereas for Phabricator Starts at $20/User/Month.
Some top alternatives to GitLab includes Codeship, Semaphore, CircleCI, Bamboo, AutoRABIT CI, Buildkite, CloudBees Core, Travis CI and Bitbucket.
Some top alternatives to Phabricator includes Jira, Assembla, Jira Service Desk, GitHub, GitLab, Qualified, AnalyticsVerse, Workvivo, CodeSee, SaaS Forge, GetGit and Bitbucket.
