Yes, both Trello and Trevor.io offer a Free Trial.
Trello is designed for Individuals, Freelancers, Large Enterprises, Medium Business and Small Business.
Trevor.io is designed for Large Enterprises, Medium Business and Small Business.
Pricing for Trello Starts at $5/User/Month when Billed Yearly whereas for Trevor.io Starts at $299/Month.
Some top alternatives to Trello includes ClickUp, Smartsheet, Miro, Process Street, Wrike, Notion, HubSpot CRM, Freshbooks, Jira, Basecamp, Zoho Projects, monday.com, Asana, Teamwork, ProjectManager.com, Microsoft Project, Worksuite, Trackboard, Quick Base, Todoist, Resource Guru and Height.
Some top alternatives to Trevor.io includes Entrinsik Informer, Sisense, DOMO, Tableau, Dundas BI, SAS Business Intelligence, SAP BusinessObjects BI, Panintelligence, ibi Analytics Platform and dataSights.