Yes, both Textografo and Lucidchart offer a Free Trial.
Textografo is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
Lucidchart is designed for Individuals, Large Enterprises, Medium Business and Small Business.
Pricing for Textografo Starts at $4/Month when Billed Yearly whereas for Lucidchart Starts at $0.
Some top alternatives to Textografo includes Miro, FigJam, SmartDraw, Gliffy, Cacoo, Microsoft Visio, Creately, Lucidchart, OmniGraffle, EDraw Max, Quick Diagram and diagrams.net.
Some top alternatives to Lucidchart includes Miro, FigJam, SmartDraw, Gliffy, Microsoft Visio, Creately, EDraw Max, DrawSQL, Quick Diagram, diagrams.net, Lucidscale and HackerDraw.