Duolingo is the world's most popular language learning app. It’s also a disruptive hotbed for experimentation with innovative business models. But now, it too faces disruption.
The owl is tapping at the window again
The owl is tapping at the window again
The owl is tapping at the window again
Duolingo is the world's most popular language learning app. It’s also a disruptive hotbed for experimentation with innovative business models. But now, it too faces disruption.