I’m here to say it: Duolingo wins marketing in the 2020s and it’s beating everyone to it. Yes, part of me is still afraid of the green bird, but jokes aside, the marketing agenda behind Duolingo is one to learn so much from and the numbers back it up. The app has held a top spot in the App Store’s education category for years and its TikTok following has outpaced language-learning competitors like Babbel and Rosetta Stone combined.

Being in the academic and educational field could be quite boring for a brand. Very direct, classic and by the book. But Duo came here to challenge that stereotypical agenda and show us – and other industries – that learning isn’t just fun (I bet you’ve heard that one before), it’s trendy and trending. It’s catchy and humorous, and the team behind the marketing churn made sure to show us that on multiple occasions.

Three things make this work: the mascot, the media and the collabs. Here’s how Duo pulls each one off.

Supportive Media

Duo definitely used digital and social to its advantage. Being an online tool and app, it wasn’t going to reach people the typical way, it had to make sure it was seen, that it got the views. Build interest to get people buying into learning a new language, or dusting off one they already know.

So Duo didn’t double down on “learning” ads. It took one of its biggest assets; Duo the bird online and translated that to offline as well. Think the owl showing up at marathons, taking over New York City subway ads, or crashing red carpets and award shows in costume. It’s the same bit that works on your phone, just staged in the real world where people don’t expect a language app to show up.

Duo the Online Mascot

Duo wasn’t just there for the sake of the brand, it wasn’t just a big green bird that flutters on social. Duo has a character and that personality translates to every language Duolingo markets in.

I came across some Duo content in Korean. Did I understand it? No. Did it make sense because of what Duo is implying and what’s currently trending and the social cues around it? Absolutely. That’s the trick: the jokes are built on visual gags, meme formats, and trending audio rather than language itself, so the humor travels even when the words don’t.

Duo’s voice is another important piece of this. Duo replies to people, roasts brands, talks to viewers. When Duolingo staged its own mascot’s “death” on TikTok and let the internet mourn (and meme) it for days before the big reveal, that wasn’t a one-off stunt, it was the voice doing what it always does, just turned up.

Same instinct when Apple launched its new flip phone: Duo didn’t sit that one out, it jumped in and roasted it, poking fun at the hype in exactly the tone you’d expect from a brand that talks trash for a living. That’s the pattern, Duo doesn’t just react to culture, it inserts itself into the joke.

Duo Scoring Collaborations

It’s “reach people in their area of interest” while staying up to date and fresh. Duo has shown up at New York Fashion Week, teamed up with Sony Music artists, and leaned into pop culture moments tied to shows on Netflix and HBO. The NYFW appearance is the standout; a language app on a runway makes no obvious sense, which is exactly why it worked. It signaled that Duo isn’t trying to be taken seriously as an edtech brand; it’s trying to be taken seriously as a cultural one.

Duo is all about entertainment.

The Real Lesson

Duo is here to teach everyone something beyond a second or third language. It’s here to show that the vision translates to everyday marketing. You need a budget, sure, but you also need to take risks, and you need to work with people who aren’t thinking inside a certain box.

A bird with the marketing vision.

Dee xx

Duo’s latest collaboration with NYFW.

Image credit search through Google images and RetailBoss.