Yes, both Taiga and Backlog offer a Free Trial.
Taiga is designed for Individuals, Large Enterprises, Medium Business and Small Business.
Backlog is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
Pricing for Taiga Starts at $5/User/Month when Billed Yearly whereas for Backlog Starts at $29.16/Month when Billed Yearly.
Some top alternatives to Taiga includes Wrike, Smartsheet, GitScrum, ProjectManager.com, OpenProject, Backlog, Kanbanize, Height and Kanban Zone.
Some top alternatives to Backlog includes Wrike, Smartsheet, TeamGantt, Teamwork, ProjectManager.com, Trackboard, TaskBranch, TestRail, Height and Project Insight.