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SortSite vs AChecker: catalog facts
SortSite	AChecker
Freemium The online demo is free for 10 pages; SortSite Desktop and OnDemand are paid.	Free Single checks are free; automatic monitoring is a paid ACHECKS subscription.
Web	Web
Accessibility, links, compatibility and SEO in one scan Over 1200 checkpoints	Checks by URL, file upload or pasted HTML Choice of several guideline sets and levels
Free demo covers only the first 10 pages Full site scans require a paid product	Guidelines stop at WCAG 2.0 Older interface with limited explanation of fixes
Downloadable app, Web application	Web application
Closed source	Closed source
License not stated	License not stated
Not stated if an account is needed	No account needed
Not stated if it works offline	Needs internet
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.