Yes, both Thoughtflow and Thinkspace offer a Free Trial.
Thoughtflow is designed for Individuals, Medium Business and Small Business.
Thinkspace is designed for Large Enterprises, Medium Business and Small Business.
Pricing for Thoughtflow Starts at $5/Month when Billed Yearly whereas for Thinkspace Starts at $10/User/Month when Billed Yearly.
Some top alternatives to Thoughtflow includes KnowFlow, Focusplan, Mindomo, MindManager, GroupMap, MindMup, NovaMind, MindMaster, Thinkspace and Rumin.
Some top alternatives to Thinkspace includes ClickUp, CollaborateCloud, Zoho Connect, Airtable, mi.team, Google Workspace, Board, CoLab, Collabtools, Sparkin and Wide Ideas.
