Yes, both Cardsmith and CardBoard offer a Free Trial.
Cardsmith is designed for Individuals, Large Enterprises, Medium Business and Small Business.
CardBoard is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
Pricing for Cardsmith Starts at $9/Month when Billed Yearly whereas for CardBoard Starts at $8.50/User/Month when Billed Yearly.
Some top alternatives to Cardsmith includes Collaboard, Microsoft Whiteboard, Miro, Explain Everything, FigJam, Conceptboard, Board, DigStack, Canva Whiteboards, Jamboard, Witeboard and CardBoard.
Some top alternatives to CardBoard includes Collaboard, Miro, FigJam, StoriesOnBoard, SmartDraw, Gliffy, DrakonHub, FlowMapp, diagrams.net, FeatureMap, Board and HackerDraw.