Yes, both Harvest and Trello offer a Free Trial.
Harvest is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
Trello is designed for Individuals, Freelancers, Large Enterprises, Medium Business and Small Business.
Pricing for Harvest Starts at $10.80/User/Month when Billed Yearly whereas for Trello Starts at $5/User/Month when Billed Yearly.
Some top alternatives to Harvest includes Connecteam, ClickUp, Smartsheet, clockodo, Timesheets.com, TrackingTime, Clockify, TimeTrack, Time Track Bill, Timesheet, Hyperlogs, Timet and Time Tracker by eBillity.
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.