Neither diagrams.net nor OmniGraffle offers a free trial.
diagrams.net is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
OmniGraffle is designed for Medium Business and Small Business.
The starting price of OmniGraffle begins at $59.99One-time, while pricing details for diagrams.net are unavailable.
Some top alternatives to diagrams.net includes Miro, FigJam, SmartDraw, Gliffy, Microsoft Visio, DrakonHub, Creately, Lucidchart, EDraw Max, DrawSQL, Quick Diagram and HackerDraw.
Some top alternatives to OmniGraffle includes Miro, FigJam, Sketch, SmartDraw, Gliffy, Microsoft Visio, Creately, Lucidchart, EDraw Max, Quick Diagram, diagrams.net and HackerDraw.