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Rosetta Stone vs Mondly: catalog facts
Rosetta Stone	Mondly
Paid Paid membership, with a free lesson to try first.	Freemium Free to start learning; fuller access is sold separately.
Android, iOS, Web	Android, iOS, Web
Immersive lessons without relying on translation Speech recognition feedback on pronunciation	41 languages, learnable from many native languages Daily lessons and topic-based conversations
Requires a paid membership beyond the free trial lesson Immersion without translation can be slow for grammar-heavy learners	Short lessons suit beginners more than advanced learners Pricing for full access is not shown on the homepage
Downloadable app, Web application	Downloadable app, Web application
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 24, 2026	Official website Full listing and sources Checked October 1, 2026

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