Phabricator offers Free Trial, but Titanium Schedule does not.
Phabricator is designed for Medium Business and Small Business.
Titanium Schedule is designed for Large Enterprises, Medium Business and Small Business.
Pricing for Phabricator Starts at $20/User/Month whereas for Titanium Schedule Starts at $1,600/Year.
Some top alternatives to Phabricator includes Jira, Assembla, Jira Service Desk, GitHub, GitLab, Qualified, AnalyticsVerse, Workvivo, CodeSee, SaaS Forge, GetGit and Bitbucket.
Some top alternatives to Titanium Schedule includes SuperSaaS, Hupport, SnapAppointments, AppointMentor, Web-appointments, ClinicSoftware.com, i-Scheduling for Appointments, DocMeIn, AdvancedScheduling, Qualified, Workvivo and IFTTT.