Which popular language learning app was originally launched under the name 'Duolingo Test Center' before being rebranded to better reflect its core functionality?

In the world of linguistics and language products, branding decisions can make or break market success. Companies invest significant resources in creating brand identities that resonate across cultures and languages. This poll explores a fascinating case of product renaming that marked a pivotal shift in the language learning technology landscape. Test your knowledge about this significant product evolution!

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