Yes, both Trello and Todoist offer a Free Trial.
Trello is designed for Individuals, Freelancers, Large Enterprises, Medium Business and Small Business.
Todoist is designed for Large Enterprises, Medium Business and Small Business.
Pricing for Trello Starts at $5/User/Month when Billed Yearly whereas for Todoist Starts at $4/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 Todoist includes Connecteam, Smartsheet, Miro, Notion, Process Street, Trello, Wrike, Teamwork, nTask, Microsoft To Do, Remember The Milk, TickTick, Any.do, MeisterTask, ClickUp and TasksBoard.