Language-learning app Duolingo makes around $500 million annually, despite offering all of its lessons for free. WSJ explores how the company is using AI and A/B testing to keep users hooked.
U.S.-based TikTok users are flocking to Duolingo to study Mandarin ... Even iconic mascots like Tony the Tiger, at 70 years old, are finding new life. Tony became the first brand mascot to ...
I’ve always wanted to be fluent in multiple languages, but at 27 years old with just ... been a casual Duolingo user since 2017, and the app’s user-friendly and playful design is one of ...
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