Yes, both ScrumDesk and Backlog offer a Free Trial.
ScrumDesk is designed for Large Enterprises, Medium Business and Small Business.
Backlog is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
Pricing for ScrumDesk Starts at $7/User/Month whereas for Backlog Starts at $29.16/Month when Billed Yearly.
Some top alternatives to ScrumDesk includes Quickbase , Smartsheet, ClickUp, Zoho Projects, Jira, GitScrum, Teamwork, ProjectManager.com, Krosswall, Backlog, Kanbanize, Height and Kanban Tool.
Some top alternatives to Backlog includes Quickbase , Smartsheet, ClickUp, Zoho Projects, Jira, Wrike, TeamGantt, FogBugz, Teamwork, ProjectManager.com, Trackboard, TaskBranch, Quick Base, TestRail, Height and Project Insight.