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