Yes, both Nuclino and Trello offer a Free Trial.
Nuclino is designed for Large Enterprises, Medium Business and Small Business.
Trello is designed for Individuals, Freelancers, Large Enterprises, Medium Business and Small Business.
The starting price for both Nuclino and Trello begins at $5/User/Month when Billed Yearly.
Some top alternatives to Nuclino includes Trello, Confluence, CollaborateCloud, Airtable, ClickUp, Microsoft SharePoint, Collabee, Slab, Notion, Slite and Witeboard.
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.