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Stark vs WAVE: catalog facts
Stark	WAVE
Freemium Free sign-up available, with paid plans and demos for organisations.	Freemium The online tool and extensions are free; the API and stand-alone testing engine are paid.
Web, Browser extension	Web, Browser extension
Covers design, browser and code stages in one suite Free sign-up for individuals	Shows issues in place on the page Extensions for Chrome, Firefox and Edge
Aimed mainly at companies, with advanced features behind sales Requires an account	Bulk testing requires the paid API or engine Automated results still need human judgement
Web application, Hosted service, Browser extension	Web application, Browser extension
Closed source	Closed source
License not stated	License not stated
Account 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 September 23, 2026	Official website Full listing and sources Checked September 23, 2026

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