Yes, both Nave and Kanban Tool offer a Free Trial.
Nave is designed for Freelancers, Medium Business and Small Business.
Kanban Tool is designed for Large Enterprises, Medium Business and Small Business.
Pricing for Nave Starts at $31/User/Month when Billed Yearly whereas for Kanban Tool Starts at $5/User/Month.
Some top alternatives to Nave includes Kanboard, Kanbanize, Screenful, Geckoboard, SheetChart, BrightGauge, InetSoft Style Scope, Kanban Tool, KanbanFlow and Kanban One.
Some top alternatives to Kanban Tool includes Quickbase , Smartsheet, ClickUp, Zoho Projects, Jira, Wrike, TeamGantt, GitScrum, SwiftKanban, Kanbanize, Agilean, Quick Base, Kanban Zone, KanbanFlow, VivifyScrum and Gantt.io.