Duolingo, the favored language-learning app based in 2011, has filed for an preliminary public providing (IPO). The Duolingo firm reported revenues that elevated 97% to $55.4 million
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Duolingo, the favored language-learning app based in 2011, has filed for an preliminary public providing (IPO). The Duolingo firm reported revenues that elevated 97% to $55.4 million