Yes, both Trello and Screenful offer a Free Trial.
Trello is designed for Individuals, Freelancers, Large Enterprises, Medium Business and Small Business.
Screenful is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
Pricing for Trello Starts at $5/User/Month when Billed Yearly whereas for Screenful Starts at $35.75/Month when Billed Yearly.
Some top alternatives to Trello includes Smartsheet, Miro, Process Street, Wrike, Notion, Freshbooks, Jira, Basecamp, Zoho Projects, monday.com, Asana, Teamwork, ProjectManager.com, Microsoft Project, Worksuite, Trackboard, Quick Base, Todoist, ClickUp, Resource Guru and Height.
Some top alternatives to Screenful includes Smartsheet, Miro, Process Street, Wrike, Notion, TeamGantt, monday.com, Teamwork, ProjectManager.com, Trackboard, ProgressBoard, Quick Base, ClickUp, Height, Kanban Tool, CodeToo and TaskBlast.