How Duolingo's new gamification mechanism convinced me to pay, by Shengyu Chen
Por um escritor misterioso
Descrição
I have been a Duolingo power user for 3 years now. My longest streak on Duolingo is 345 days (till this very day, I am still impressed by myself with that ;) ). I never paid a dime during that time…
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How Duolingo's new gamification mechanism convinced me to pay
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Recommender Systems Intro Notes(Stanford Mining Massive Datasets
DoorDash Tear Down (Some with UberEats Comparisons)
Shengyu Chen – Medium
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por adulto (o preço varia de acordo com o tamanho do grupo)
