Still, not everyone loves it. When Duolingo's head of product, Cem Kansu, posted a thread in 2020 about the success of "the passive aggressive reminder," several unhappy Duolingo users chimed in.

Duolingo Push also gives you the "option" to chose which kind of owl will "bug you" in real life. There's the "Encouraging Duo," the "Passive-Aggressive Duo," and for the low, low price of $100 a ...