Yes, both EDraw Max and DrawERD offer a Free Trial.
EDraw Max is designed for and Small Business.
DrawERD is designed for Large Enterprises, Medium Business and Small Business.
Pricing for EDraw Max Starts at $99/Year whereas for DrawERD Starts at $5/Month.
Some top alternatives to EDraw Max includes Miro, FigJam, MindManager, SmartDraw, Gliffy, Microsoft Visio, Creately, Lucidchart, DrawSQL, Quick Diagram, diagrams.net and yEd Graph Editor.
Some top alternatives to DrawERD includes Miro, FigJam, Gliffy, Microsoft Visio, Creately, QuickDBD, Lucidchart, DrawSQL, AutoCloud, Quick Diagram, diagrams.net and ERD Lab.