Yes, both Todoist and ClickUp offer a Free Trial.
Todoist is designed for Large Enterprises, Medium Business and Small Business.
ClickUp is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
Pricing for Todoist Starts at $4/Month when Billed Yearly whereas for ClickUp Starts at $7/User/Month when yearly.
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.
Some top alternatives to ClickUp includes Basecamp, Trello, TeamGantt, Asana, Teamwork, ProjectManager.com, ProWorkflow, nTask, Todoist and Height.