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Visual Paradigm vs Astah UML: catalog facts
Visual Paradigm	Astah UML
Freemium Paid editions with a free trial; some tools such as the VPasCode online editor are free.	Paid Paid license with a free trial and student options.
macOS, Web	macOS
Covers UML, SysML, BPMN and enterprise architecture in one tool Desktop and browser versions	Focused on UML without extra complexity Mind mapping included
Broad feature set takes time to learn Full features require a paid edition	Paid after the trial SysML and other modeling require separate editions
Downloadable app, Web application	Downloadable app
Closed source	Closed source
License not stated	License not stated
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked October 2, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.