Yes, both OneDesk and TeamGantt offer a Free Trial.
OneDesk is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
TeamGantt is designed for Large Enterprises, Medium Business and Small Business.
Pricing for OneDesk Starts at $12/user/month when yearly whereas for TeamGantt Starts at $19/Month when Billed Yearly.
Some top alternatives to OneDesk includes Quickbase , Smartsheet, ClickUp, Zoho Projects, Freshbooks, Jira, Wrike, TeamGantt, Teamwork, ProjectManager.com, Backlog, Worksuite, Quick Base, Resource Guru, Jira Service Desk, HelpDesk, HESK, Height and Scopedesk.
Some top alternatives to TeamGantt includes Quickbase , Smartsheet, ClickUp, Zoho Projects, Wrike, ManagePro, monday.com, Teamwork, ProjectManager.com, Microsoft Project, GanttPRO, Instagantt, ProWorkflow, Quick Base, GoodGantt and Gantt.io.