Which language learning app founder famously used his own app to learn Spanish, then delivered a TEDx talk entirely in Spanish just 3 months after starting to learn the language?

The language technology industry has transformed how we communicate across borders and platforms. Behind some of the most revolutionary translation and language learning products are visionaries who changed how we interact with language. Test your knowledge about the founders behind the tools that help millions speak, write, and understand languages from around the world!

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Luis von Ahn (Duolingo)
Mikael Svenson (Babbel)
Gabriel Wyner (Fluent Forever)
Paul Sawaya (HelloTalk)