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Originality.ai vs Smodin: catalog facts
Originality.ai	Smodin
Freemium Three free AI scans per day, with paid plans for more.	Freemium Free to try, with paid plans for heavier use.
Web, Browser extension	Web
AI detection plus plagiarism, readability and fact checks Chrome and Firefox extensions with Google Docs support	Several writing tools in one place Accepts uploaded Word, PDF and text files
Free tier is limited to three scans a day AI detection results are estimates and can be wrong	AI detection scores are estimates and can be wrong Humanizer output may conflict with school or publisher rules
Web application, Browser extension	Web application
Closed source	Closed source
License not stated	License not stated
Not stated if an account is needed	No account needed
Needs internet	Needs internet
Official website Full listing and sources Checked September 26, 2026	Official website Full listing and sources Checked September 26, 2026

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