Yes, both Trello and ProdPad offer a Free Trial.
Trello is designed for Individuals, Freelancers, Large Enterprises, Medium Business and Small Business.
ProdPad is designed for Large Enterprises, Medium Business and Small Business.
Pricing for Trello Starts at $5/User/Month when Billed Yearly whereas for ProdPad Starts at $1,199 when Billed Monthly.
Some top alternatives to Trello includes Quickbase , Smartsheet, ClickUp, Zoho Projects, Freshbooks, Jira, Basecamp, Wrike, monday.com, Asana, Teamwork, ProjectManager.com, Microsoft Project, Worksuite, Trackboard, Quick Base, Todoist, Resource Guru and Height.
Some top alternatives to ProdPad includes ProductPlan, Jira, productboard, Productroad, Backlogs, Next Please, ProdEasy, StoriesOnBoard, Height and IdeaPlan.