Yes, both Backlog and Miro offer a Free Trial.
Backlog is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
Miro is designed for Large Enterprises, Medium Business and Small Business.
Pricing for Backlog Starts at $29.16/Month when Billed Yearly whereas for Miro Starts at $8/User/Month when Billed Yearly.
Some top alternatives to Backlog includes Smartsheet, Miro, Process Street, Wrike, Notion, Jira, TeamGantt, FogBugz, Teamwork, ProjectManager.com, Trackboard, TaskBranch, Quick Base, ClickUp, TestRail, Height and Project Insight.
Some top alternatives to Miro includes Collaboard, Microsoft Whiteboard, WhiteboardFox, Conceptboard, MURAL, Lucidspark, Whimsical, Board, Zoom Whiteboard and Witeboard.