Which language learning platform revolutionized their industry with the famous tagline 'Language learning, backed by science'?

In the world of language technology and linguistics, certain taglines have become iconic. These phrases not only market products but often become part of our everyday lexicon. This poll tests your knowledge about a revolutionary language learning platform's famous tagline that changed how we think about language acquisition and helped establish their brand as a market leader.

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Duolingo
Babbel
Rosetta Stone
Memrise