Seems like a well-timed IPO to sell a slightly misleading company narrative. They're labeling themselves as a growth company yet I'm very skeptical that those 2

Seems like a well-timed IPO to sell a slightly misleading company narrative. They're labeling themselves as a growth company yet I'm very skeptical that those 2020 numbers can be maintained. On the other hand, I did have a Duo Plus subscription for about a year (in 2020). It was my primary tool for learning Brazilian Portuguese, and when people are impressed with how much I understand, Duo has come up a few times. In other words they are achieving word-of-mouth growth. I do also think it's mostly an effective learning system (especially the Stories) but I did have 3 or 4 years of traditional Spanish education in school. If I didn't have that foundation I probably would not have got as far as I did. Also, Duo gets boring as hell after a year.