How We Created a High-Scale Notification System at Duolingo
Briefly

Duolingo is the largest language learning app, providing free high-quality content globally. Our goal is to create the best education app accessible to everyone, underlining our commitment to education.
Our mascot Duo, a green owl, is well-known for encouraging users to practice daily. In fact, nearly 27 million people engage daily with Duolingo, showcasing the platform's widespread use and commitment to learning.
The Super Bowl attracts a staggering viewership, making it the largest broadcast in television history, with numbers comparable to the combined populations of the UK, Spain, and Portugal.
The Super Bowl is not just a sports event; it’s a cornerstone of American culture, bringing people together to watch an iconic event that highlights the importance of community and entertainment.
Read at InfoQ
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