Yes, both Trello and Crystal Ball offer a Free Trial.
Trello is designed for Individuals, Freelancers, Large Enterprises, Medium Business and Small Business.
Crystal Ball is designed for Large Enterprises, Medium Business and Small Business.
Pricing for Trello Starts at $5/User/Month when Billed Yearly whereas for Crystal Ball Starts at $6/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 Crystal Ball includes Google Analytics, GoAnalyze, UseItBetter, Power My Analytics, Sweet Analytics, Analytics Canvas, GAannotations, Slymetrix Analytics, Blogalyzer and TurboAnchor.