Duolingo Inc
NASDAQ:DUOL
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Duolingo Inc
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Good afternoon, and welcome to Duolingo Second Quarter Earnings Webcast. We hope you enjoyed that celebrity compilation which complements the themes we discussed in this quarter's shareholder letter, which was released today after market close. You can find that letter on our IR website at investor.duolingo.com.
On today's call, we have Luis von Ahn, our Co-Founder and CEO; and Matt Skaruppa, our CFO. We will begin -- they will begin with some brief remarks before opening the call to questions. [Operator Instructions] And please note that this event is being recorded, and all attendees are in listen-only mode.
Just a reminder that we'll make forward-looking statements regarding future events and financial performance, which are subject to material risks and uncertainties. Some of these risks have been set forth in the risk factors of our filings with the SEC. These forward-looking statements are based on assumptions that we believe to be reasonable as of today, and we have no obligation to update these statements as a result of new information or future events.
Additionally, we'll present both GAAP and non-GAAP financial measures on today's call. These non-GAAP measures are not intended to be considered in isolation from, a substitute for or superior to our GAAP results, and we encourage you to consider all measures when analyzing our performance.
And now I'll turn it over to Luis.
Thank you, Debbie, and welcome, everyone. I'm pleased to share that we had another record quarter. In Q2, we achieved our highest ever daily and monthly active users, revenue, profitability and free cash flow, and we surpassed 5 million subscribers. We also just celebrated our 2-year anniversary of becoming a public company, and I'm very proud that we have outperformed the lofty goals we set for ourselves at the time of the IPO. Thanks to our continued strong performance, we are raising our top line and profitability guidance for the year. Matt will walk you through our updated outlook shortly.
Our strong results are a testament to our relentless focus on making our product more fun and engaging and effective. We delight our learners who tell their friends and family about us, which drives our organic word-of-mouth growth. Add to that, our unique and efficient, though at times unhinged, approach to marketing, and you get a brand that has become synonymous with language learning. And that creates opportunities for us to be part of cultural moments, like you saw this past month, when we were referenced in the Barbie movie. I should mention that this was an inbound request to us. We didn't seek out being in the film, which I think is a reflection on the strength of our brand.
Over the past 8 quarters, we've seen very strong DAU growth, and that growth has been high-quality and has been broad based with users coming from all regions of the world. The U.S. continues to grow nicely, and some of our fastest growth have come from the wealthier European countries. This growth not only validates the huge addressable market of language learners, but because of the power of our freemium business model, which I've discussed in previous shareholder letters, strong user growth drives strong financial performance.
We attract free users primarily through word of mouth. We delight them through product improvements driven by experimenting and optimizing the app, and then we convert them to paid subscribers. This playbook for growing subscribers has worked exceptionally well.
Last quarter, the focus of our shareholder letter was on how AI has been part of our strategy for a long time. We have been using artificial intelligence for years to make our product more personalized and engaging. We're also embedding the recent advances in this type of technology throughout our products and the company.
For example, we're using generative AI to speed up our script writing for Duolingo Stories and to more efficiently scale our course content. We are using generative AI to continue to innovate on Duolingo Max, which is a higher tier offering. We will continue improving Max features and testing pricing and packaging before rolling it out more broadly as we do with all our major changes.
Using new technologies to make excellent products takes time to get right, but it's exciting to think about how the acceleration in AI can help us achieve our vision of teaching you as well as the human tutor.
And with that, I'll turn it over to Matt.
Thanks, Luis. In the second quarter, we outperformed our expectations for user growth with DAU and MAU increasing 62% and 50% year-over-year, respectively. This with DAU to an all-time high of 21.4 million and MAU to an all-time high of 74.1 million, respectively.
On our total paid subscribers, we increased them by 59% to 5.2 million. Our strong user and subscriber growth fueled our top line performance with bookings and revenue increasing 41% and 44% year-over-year, respectively, or 42% and 46% on a constant currency basis.
We continue to manage the business with cost discipline, and this quarter, we delivered our highest quarterly profit. Our net income totaled $3.7 million compared to a net loss of $15 million in the year ago quarter. Note that our net income benefited from a $1.3 million noncash tax benefit.
We also posted a record high adjusted EBITDA of $20.9 million or a 16.5% adjusted EBITDA margin. Note that we moved some marketing spend from Q2 to the back half of the year, and that this increased our adjusted EBITDA this quarter by about 0.5 point or 1.5 points.
Based on our strong results and trends, we are raising our full year guidance and issuing the following for Q3 2023, $136.5 million to $139.5 million in total bookings; $129.5 million to $132.5 million in revenue; and an adjusted EBITDA margin of 13% to 14%.
For the full year 2023, we are raising our guidance to $569 million to $575 million in total bookings, $510 million to $516 million in revenue, and we are updating our adjusted EBITDA margin range to 14% to 15%. Our full year guidance calls for a 33% year-over-year bookings growth and 39% year-over-year revenue growth at the midpoint.
We feel confident raising our top line guidance because of our strong user growth and continued strong free-to-pay conversion. And because we've achieved significant operating leverage year-over-year across the business, that gives us confidence to raise our full year adjusted EBITDA margin guidance by about 300 basis points compared to what we issued on our last call.
Let me go through how our Q3 operating expenses are expected to compare Q2. We expect non-GAAP R&D as a percent of revenue to increase by about 1 point. And we expect non-GAAP sales and marketing to increase by about 2 points due to the sales and marketing spend that I mentioned that we shifted from Q2 to Q3.
Non-GAAP G&A will be relatively stable as a percentage of revenue in Q3. In Q2, our average subscription revenue per subscriber declined by about 7% year-over-year, driven by foreign exchange impacts and regional pricing. At current exchange rates, we expect that the year-over-year decline in this metric has bottomed out, and that the year-over-year change will approach to 0 by Q4 as we finish lapping FX and regional pricing impacts.
Our guidance assumes current prevailing foreign exchange rates. And as a reminder, roughly half of our revenue comes from outside the U.S. So every 1% increase or decrease in the value of the dollar versus our basket of currencies, has about a $1 million headwind or tailwind, respectively, on total bookings for the second half of the year.
As Luis mentioned, we're excited by generative AI's potential to help us accelerate our mission, and we are experimenting with that in Duolingo Max, our higher tier subscription. We have not yet included any material amount of booking revenue from Max on our guidance, and we'll keep you updated on our progress in the coming quarters. Finally, we ended the quarter with approximately 48.8 million fully diluted shares outstanding using the quarter end closing price. We continue to expect to end the year with about 2% dilution from equity issued to employees.
And with that, I'll turn it back to Luis.
Thank you, Matt. I'd like to thank our team of amazing and talented Duos for all their hard work and helping us deliver another record quarter. These results would not be possible without their dedication and passion. And now we would be happy to take your questions.
I'll turn it back to Debbie to manage the queue.
All right. Thanks, Luis. As I mentioned earlier, if you have a question you can use the raise hand feature. So the first question comes from Ryan MacDonald of Needham.
[Indiscernible]. Thanks for taking my questions and congrats on an excellent quarter. Luis, I wanted to start with commentary around social marketing and that you talked about in the shareholder letter. You've always done a really great job of being able to drive usage and users to the platform from some of the social media channels. And given that we have a new channel that's emerged really quickly in Thread, I'd be curious what you're doing there from a marketing perspective, and I'm wondering how you think this can be sort of an additional tailwind to users to your platform based on those emissions?
Well, thank you, great question. So yes, Threads, I mean, on the day it launched, our social media team was all over it. We actually got quite a good number of engagements with it. So we are looking into it. I mean in the end, if Threads becomes a very powerful social network, you bet we'll be there. I think right now, it's significantly smaller than things like TikTok or YouTube. So we're not seeing the impact there. But we're definitely -- you will see us experimenting there for sure. I mean we have an excellent social media team. What I'll say in addition to this is it's important for people to understand all of this marketing is not paid for us. I mean usually, we just do all this organically, and we're going to be on hinge there, too.
Excellent. Can't wait to see more about that. Second question is on the use of AI and how it's being built into the product. I'd be curious to hear some of the additional feedback of what you're hearing from customers so far that are using the Duolingo Max features? And then how, if you exceed the AI integration evolving over time? We're starting to see newer models where maybe instead of leveraging OpenAI and that functionality and sort of having to bear the cost on a per interaction, that some vendors are starting to build customized large language models for their own content, which can potentially save on costs and create some proprietary nature of the AI. But just curious how that continues to evolve for you?
Yes. These are excellent questions. So first of all, for Max, just to remind everyone where we are. So Max is a higher tier subscription offering. It is -- we are testing the price, but right now, roughly 2x the price of Super, although you really are going to see us test the price all over the place because we're testing everything. We're testing Max on a very small fraction of our users, and this is very standard of our future development, especially for very large features. So what we do is we start with a tiny fraction of our users, and we start making the features better and better. And as they get better and better, we start giving it to larger and larger fractions of our users.
For a large thing like Max, just as an example, the last very large change we did was whenever we changed to a new home screen, we did the past home screen. That took us about a year to roll it out from the first test to finally getting it out to our users. I don't know how long Max will take, but it is something like that. And it has -- when we first started testing Max, we had two features. One was called Roleplay, which allowed users to practice conversation; and the other one was called Explain My Answer, which gives you an explanation for when you make a mistake.
We've been working on making those two features better. For example, Roleplay is -- now it's a lot more interesting, so whereas before, it was probably a dry conversation where you have to maybe just order a croissant. Now you may order a croissant but something weird happens in the middle where like, I don't know, something like a burglar enters and something weird happens in the middle. So mayhem happens, and it's a much more interesting conversation. So we're improving those features.
And then the other thing that we just did for Max is we added another feature which is an in-lesson coach. Basically, before you submit your answer in a lesson, you can tap this thing, and it will give you some hints about how to answer or give you some grammar hints about how to answer. The reception is very good. I mean, I'm very happy with it. And so far, we're very happy with it.
And -- but we're just testing our way so that by the time we give it to all our users, we will have found what we believe to be close to an optimal price and close to optimal kind of features to give it out with. But so far, so good. In terms of costs and in terms of developing our own model, for now, we're sticking -- we're using OpenAI, and we're very happy with it. Our belief internally is that the cost of these models is going to go down. And for now, we're spending most of our effort on just making the best possible features out there rather than on saving this -- on this because our belief is that we could say, at any point. Basically starting to optimize the cost of this is what we would do after we're super happy with all the features. And we just haven't gotten there yet.
Thanks for the color and congrats again on a strong quarter.
Thank you. Thank you, Ryan.
Thanks, Ryan. Next question comes from Mario Lu at Barclays.
Great. Thanks for taking the questions. The first one is on the average subscription revenue percent. So Matt, I think you mentioned by the end of this year, it's going to be a portion with flattish growth. I was just curious to share your thoughts on Duolingo's pricing power overall. And the thought of increasing pricing on the core products and synergies going forward as we have seen from other kind of consumer low laps?
Yes. No, it's a great question. And Mario, you're exactly right. We expect that by the year-end, to your point, the year-over-year growth in ARPU will be essentially flattish. And then when you talk about pricing power, I think it goes back to what we've said a bunch of times on these calls, which is we experiment with price and packaging a lot around the world. So like in the U.S. or Western Europe, raising price will be just a normal experiment. That's just a normal course thing we'll test from time to time. There are times when we do bigger pricing tests like Q2 of last year when we did the regional pricing tests in about 100 countries at once. But we're always, I guess, fine tuning our price, and that includes raising prices over time in certain places. So yes, we're definitely going to consider that, and it's something that could happen in the future.
Great. Thank you. And then maybe just a high-level one. I saw on your blog that you guys had an article in terms of streaks by user age. And I think it said that users over 60, like 30% had a streak of over a year. Whereas like users, 13 and 17 was less than 5%. I guess why is that? And any learnings that could be applied to kind of the younger users from the older generation? Thanks.
You probably don't have teenage children. It's harder to get them to do something. I mean, it's just the case that we have noticed that people who are older just are more constant in their habits. And that's that. Now I'll say, I mean, we are very happy with our results for younger audience. We are much more well known among younger audiences than we are with older people. It just so happens that older people are a lot more committed. But I don't know if we can change that, but we're always working just in general, not necessarily per age.
We're just always working to make the product more engaging. And you can see that in a number of ways. For example, our DAU-to-MAU ratio keeps getting better and better. It's now up 29% essentially. And it just keeps getting better and better every quarter. And the other thing that keeps getting better and better is the number of people with long streaks. So the number of people with streaks longer than a year, that just keeps -- that number keeps growing, and it's multiple millions. So yes, I mean just generally, we just keep making the product more engaging.
Great. Thank you.
The next question comes from Ralph Schackart of William Blair.
Great. Thanks for taking my question. Since your IPO, you delivered very strong system performance, particularly on the top line, but even more so on the bottom line this year, like the new guidance is somewhere in the range of 1,000 basis points increase year-over-year was just exceptional. Just philosophically, how are you thinking about margins going forward without quantifying it? Are you willing to let them run? Will you reinvest for new products? That's the first question. I have a follow-up.
Yes. Thanks, Ralph. And we definitely agree. We -- since we've gone public top to bottom, our performance has been strong, strong user growth, strong top line, and this year, in particular, strong adjusted EBITDA performance. As we said before, we're glad that the business is both getting more profitable, more cash generative, et cetera. And the way we think about it is we always want to invest back in the business first because the growth opportunities ahead of us are so robust. I mean we're at the start of monetizing our own user base and monetizing a very large market. So we're going to continue to invest. That's why I think this year, we're proving that we can grow nicely and become materially more profitable. So it's a yes and for us.
If you're thinking about your comment around letting margins run. If you look at other companies in our industry, kind of our IPO cohort, roughly our time when we went public, when they first become materially profitable, their first year of real profitability, it's usually a big step change, kind of like ours is looking to be. And then after that, they make steady progress towards their long-term EBITDA targets. And I think that's more in line with what we're thinking over time.
Great. And Luis, I think you've been asked this before maybe a couple of quarters ago, just in terms of size of the TAM in terms of users and some people do compare to the dating apps or companies. Maybe just kind of go back to that, give you an opportunity. Do you have any updated thoughts on sort of like the long-term penetration there?
Yes. I mean it's an excellent question. So for one, this language learning as a whole, I mean our best estimate, there's about 2 billion people in the world learning a foreign language. And collectively, they spend about $60 billion a year. So that's a standard answer, but it's a little more complicated than that because in many countries, for example, in the U.S., 80% of our users were not learning a language before Duolingo. So it's kind of really hard to know exactly how many people we can get to. I mean we're getting close to 100 million MAUs. We're like getting close there. I think we can get much further than that. But it's just hard to know exactly how much because we are growing the market.
Okay. Thanks, Luis. Thanks, Matt.
Thanks, Ralph. Next question comes from Eric Sheridan of Goldman Sachs.
Thanks so much for taking the question. Maybe come back to the element of what you see as some of the most critical investments in -- on tent. As we look out not only this year, but just longer term, that could be elements of driving incremental user growth and spend engagement and also monetization of the user base. And how -- I know you talked a little bit about it earlier, Luis, how AI can sort of lower some of the frictions creating content versus some of it that might just be sort of elements of sort of building away from the AI initiatives as well. Thanks so much.
Yes. Excellent. Thank you, Eric. So let's see, in terms of content, the major things that we need to invest on in terms of content are: number one, more advanced content for some of our courses. So like we said in the past, not all our courses cover the same -- to the same level of proficiency. I mean, for example, our course to learn French covers a lot more than our course to learn Italian. So we need to basically get all our courses to teach through pretty high levels of proficiency. So that's one place where we're adding content. In particular, we are interested in adding a lot more content to our English courses, our courses that teach English because we know there's a large opportunity there of English learners.
In general, in the world, English learners, if you take just an average English learner, they're usually more advanced than an average Spanish learner because just kind of worldwide, they usually have some previous knowledge for English, the English learners. So there's a lot of content that we are adding to our English courses. But to all of our courses to be more advanced, that's kind of one big chunk.
Another big chunk is just making our content more interesting and in particular making it have kind of a narrative with all of our characters. So we've been working on adding stories and storylines for all of our characters and making them better and better over time. So those are kind of the two initiatives. In both of those cases, AI can help us, and we've been working hard to make it so that with AI, we can generate it faster and cheaper. And the hope is that it's also of the same quality. I would say, for things like creating stories that are fun, we can probably do it faster and cheaper. I don't think we're quite yet there at -- of the same quality yet. That's very -- essentially Hollywood writers or something like that. We're getting there, but it's not quite there yet. So that's kind of what we're working on, and we do think that AI can help us really do much better there. Yes, I think that's what -- I'll stop there. I think that's what I'd say.
Great. Thank you so much
Thank you, Eric. Okay.
Okay. So next question comes from Andrew Boone at JMP.
Thanks for taking my questions. I wanted to go back to one of the IPO disclosures and just talk about the 40% kind of annual retention rate that you guys talked about back then. Can you talk about how that's trending? And then maybe how do we think about kind of updating models today now that we're kind of 2 years out from pretty significant cohorts. How do we think about maybe year 2 or year 3?
Yes, it's a great question. So the way we think about retention in general is not in an end in itself. It's a piece of what we optimize for on the platform, which is lifetime value, which is a combination of pricing, packaging and retention. So when you look at since the IPO, it's -- our platform LTV has increased a lot because we've shifted retention up on a blended basis because we have more annual subscribers and they have better retention. That's increased platform LTV.
We've also have a brand new SKU, a family plan, which is a higher price and higher retention SKU. So that has also shifted platform LTV. So on a platform LTV basis, we've increased that value. When you look at overall blended retention, it's about the same as it was when we went public. Some of the plans, like annual plan or monthly, some of those retentions have moved around. But when you blend it all together, it's basically the same as we went public. And we think that's likely to be stable at least throughout the rest of the year. So that's how we're thinking about retention as part of increasing platform LTV.
And then, Luis, you talked about more of the advanced learner market earlier. What are the key product levers that you need to unlock there to really open up that market? And then just help us size that, right? Is that the majority of the $60 billion? Or is that a minority, like how do you think about the potential for that? Thanks so much guys.
Yes. This is a great question. It is a huge opportunity. If you look at just the total language learning market, the majority of it is people learning English. And many of these people do want something more advanced than just beginner stuff. So this is why we're working a lot on adding a lot more content to our English courses. And yes, that's the -- I think it's just a major opportunity. And it's a weird thing because if you look at where our revenue comes from, the majority of our revenue comes from -- for example, half our revenue roughly comes from the United States. These are usually not people learning English. They're learning kind of Spanish or French, et cetera.
But if you look at the language learning market as a whole, it's highly skewed towards people learning English in non-English speaking countries. So you see them they're in Asia, Latin America, Western Europe, et cetera, non-English-speaking countries. So we're kind of flipped, but it's because -- in part because we are a digital product, and we make our revenue kind of like how digital products make the revenue. If you look at where Spotify or Netflix and stuff like that make the revenue, it's kind of similar to us. We make it from the U.S. and kind of English-speaking countries, et cetera.
So there's that. But because of the language learning market, we think there's a huge opportunity to make a lot of our money from different markets. And the unlocks that we need to do there, one is we just need to have all of our English courses reach more advanced levels. We are working on that. And it will be a few more months until we have that. But that's -- that, by itself, is not the only thing that will unlock more revenue from English learners. That's one thing that's needed.
Another thing that's needed is truthfully in our product, we need to get better at whenever you come in with prior proficiency, we need to get better at placing you. That's another big unlock that we need to do. We just need to get better at that. And then after that, we need to get better at convincing, especially English learners, that we have this more advanced content. So we need to do that. And then after that, we're around that same time, we also need to get to the point where in some of these countries, we have not yet [indiscernible] how we're going to get them to pay because in many of these countries, the -- there's just a lot more -- a lot less likelihood to pay even if you reduce the price to something that makes sense in GDP per capita, they're just -- they're always in the sense of like, well, I'm not going to pay if I don't have to.
And our product is freemium. And many of them, they are just like, well, the free product is kind of good enough. So we need to unlock that. And we've seen a few companies do a better job than us. For example, Spotify has done a better job than us at that. So I think we just need to experiment on how to do that. So there's a number of things that need to happen. But once all of those things happen, which we are working on, we think this is a major opportunity for us. I mean it's the majority of the market.
Thank you.
Next we have a question from Arvind Ramnani at Piper Sandler.
Thanks, Debbie. I wanted to ask about this daily average users. I mean, certainly, it's been kind of -- kind of tracking at a really healthy kind of pace. How much should we think like externally is like I mean the higher the numbers obviously better, but what's like a healthy number either in terms of growth rate or in terms of like total numbers?
I mean …
Go ahead, Luis. Do you want to take the first stab at it?
Well, that's a very hard question to answer. I mean, look, the way we see it is, this is the main thing we are optimizing for. Because of our freemium model, the more daily active users we have, the more people we can convert to payers, et cetera. I mean it's just generally good. And also the more daily active users we have, the more data we have to run more experiments to be able to personalize things for you better, et cetera. So it's just the gift that keeps on giving when we have more daily active users.
So for us, that's just -- the more we can grow it, the better. We're very happy with the fact that for the last 8 quarters in a row, our growth has been either accelerating or remaining very high. It's very hard to say how many more quarters we're going to have like this. And obviously, we cannot have accelerating user growth forever. That's just -- at some point, you run out of humans. So -- but it is -- on our end, I don't know, for me, it's very hard to say what's a healthy number. We just need to continue growing, and we've been.
Yes. I mean many ways make money, right? Like more of it is good. It solves a lot of problems. Like I'm just trying to figure out like is that like -- is there a ratio in terms of like paid users versus like -- I mean, I'm sure there's some thought of like what's the number were below -- it gets below particular level, you're going to get more aggressive in terms of like paying for users or any of that.
Yes. One way to approach this [indiscernible] was before we went public, we had a lot of years of data. And user growth then was in the 25%, 30% cash range. And that was really healthy. It got us to a nice scale. Now I don't think that anyone on this call, Luis and I and our teams, obviously, we're happy. This next quarter, that's where growth went to. But certainly, that was healthy pre-IPO. So at some point, that will be a healthy growth rate in the future.
Again, I don't think that's in the next quarter, but you can still produce an enormous amount of subscribers, revenue, bookings and profit if your growth rate was in that level. And we think that level should be attainable or achievable for over the long-term. So that's one way to kind of approach what's like healthy or not healthy. By the way, right now, it feels healthy though.
Yes, of course. And then just on AI, you've given us several commentary on AI, and Duolingo Max is sort of the first sort of tangible kind of product. Is there anything you can provide to us in terms of like where do you think like applications of -- where do you look to apply AO in the next 6 to 12 months in terms of like a tangible product where you're able to charge for it?
I mean, in terms of what we're going to be charging for the majority of our efforts are going to be on Duolingo Max. There are other places where we're applying AI within the company, and we've been -- I mean, for example, we're making our content faster, we're making our content creation cheaper. We're doing a lot of things inside the company to do that. But in terms of things that we're going to sell to users, I think most of the effort is going to be on Duolingo Max.
Yes. Terrific. By the way, great start to the earnings call. I don't know if you can top that on the next one. But I thought bringing out the DO last earnings call was good, but you all out dated yourself. Let's see if you can top next earnings.
Thanks, Arvind.
I should say all of these deliveries. We do not pay celebrities for doing that. They use us.
Thanks, Arvind. Next question comes from Mark Mahaney at Evercore.
Okay. Thanks, Debbie. I had 1 or 2 for Matt, 1 or 2 for Louis. Matt, this really strong growth in MAUs, do you want to give us any color as to whether there's anything unusual in terms of where these MAUs are coming from? Any reason to think that the most recent kind of surge in growth that you've seen in MAUs comes from markets that are more dependable or less dependable than what you've seen in the past? And the second finance question for you is, is the first quarter in which your incremental margins were actually above your 30% to 35% long-term EBITDA margins.
So changes seems pretty positive into the back half of the year. I don't know. At what point do you reconsider where your margins can go long-term? Or is it that you may want to just -- you may want to be leaning more into investments you feel like near term, you're over-earning and you want to lean more into investments as we go through the next kind of 12 to 18 months?
Thanks, Mark. Great questions as always. In terms of the user growth, I'll say three things. So the first one is that we saw a great top-of-the-funnel user growth and great kind of current user or active user retention and growth. So it's really across the funnel we saw really strong growth and have for the past several quarters. The second thing is that it has been broad based geographically. So one of the things we look at is, is it lopsided? Or is it basically all around the average? Obviously, around the average things move. There's some that are going faster, some are going slower. But it's still broad-based, meaning that like the U.S. is growing really, really well. Western Europe is growing very fast, and then plenty in Asia is growing fast as well. So broad based.
And then the last thing we look at is how strong are these cohorts in terms of free-to-pay conversion. And we've seen great trends on free-to-pay conversion as well. So we feel not only is the user grow fast and impressive, but it's high-quality and broad-based. So we feel really good about that performance to date, and then we feel good about the forward on it as well.
On your second question, the incremental margin is the right one to think about it. And I'm glad you framed it in terms of the long-term margin. We have not updated our view on long-term margin. We still think it's the same as it was when we went public, 30% to 35% long-term adjusted EBITDA margins. What we've shown this year is that there's power in this model. It's a very profitable model, and so that we can get to that level of incremental profit slightly above this quarter. But I think, again, I'll just go back to our capital allocation strategy that I mentioned in the answer to another question.
First and foremost, we're at the early stages of growing this business. It can be a very large business. And so we're going to continue to invest into the business while also maintaining that profitability threshold that we talked about getting towards the long-term margins. But you should not read into this quarter as us redefining the long-term on that.
Okay. And then Luis, two quick questions. Just any update on my favorite math subject. Just what kind of traction you're seeing? And then your comment about building out more content, maybe think about like vertical language. There's English, and then there's legal English, or there's English and then there's medical English. Like is that something that you think about long-term? Like I know there's different terminology. You can get very sophisticated, very complicated. I would also think highly profitable for any company that can solve learning medical English for somebody coming -- I'm making this up from India or from Guatemala, whatever the example is. So is that a possibility kind of verticalizing and really getting to kind of -- I don't know, whatever that is professional English for different industries?
Yes. So both great questions. I mean in terms of math, we're very happy with the progress so far. Like it continues being the case that -- the app is growing and the growth looks a lot like early Duolingo. So we're very happy with that. In terms of what we're doing and what we need to do, we know we need to add more content to it. I just kind of -- just more subjects within math, and we're working hard on doing that. So you'll see us over the next few months, there will just be significantly more content. And that's the main thing. But the growth looks good. I'm very happy with it.
In terms of kind of verticals of English, we know that this is a big business kind of thing like Business English, Medical English et cetera. For now that’s not something we're addressing. In the future, we may. But right now, we're just a lot more keen on really getting all of our English courses to get to teach English even though it may not be specialized, but pretty advanced English. At some point, we may get into specialized English.
The one thing that I'll say about specialized English is the audiences start getting pretty small, and we do much better with large audiences. I mean if you think about it, we're an app business. It's rare to find apps where people pay a ton of money. Like a single person pay thousands of dollars to learn on an app, that's rare to find. And when the audiences are small, if you want to make a lot of money, you need to charge a lot. And so we're more in the business of getting very large audiences. And so that's why we haven't done it yet. But at some point, we'll probably investigate it.
Thanks, Luis. Thanks, Matt.
Thank you, Mark.
Thanks, Mark. And now we have a question from Justin Patterson of KeyBanc.
Great. Thank you very much and [indiscernible]. Stories and big picture, I just sort kind of want to break back to something both Andrew and Mario brought up on their questions. Time stances [ph] obviously a great focal point on the app. On the one side, you've got younger generations perhaps shorter attention span. On the other hand, you've got older consumers who also have limited time to spend on the app. So if you look at something like the Duolingo Max at the premium tier, how can we really kind of position this to unlock some of those pain points, also Luis being congruent with that you told to Andrew finding that right price point to really [indiscernible] international markets that have lower propensity to pay and to succeed on that [indiscernible] making it a global education platform. Thank you.
Yes, Justin, I mean, I think generally we're going to be testing a lot of -- the way we work with all of our products is we kind of test our way into things. I'm not entirely sure how exactly we're going to be addressing younger versus older audiences with Max, et cetera. I think we'll just test a lot and find a sweet spot where because of the price and because of the features that are being offered, a pretty large number of people who are buying Max. But ultimately, I'll refer to just the fact that for all of these, it's hard for us to know in advance what things will resonate with which users so this is why we test. And part of the reason is that our user base is just so broad. It's not just older versus younger. I mean, we have users in the lower economic or in the higher economic end of the spectrum. We have users in every single country in the world, et cetera. So we just -- it's just hard to think about in terms of for us, a priority. But in the end, we just test our way to it. That's what we'll find.
All right. Thank you.
And it looks like we have a question from Zach Morrissey of Wolfe Research.
Great. Thanks, Debbie. Just curious on an update in terms of you called out paid influencer spend in Asia and LatAm last quarter kind of working well. Just curious for an update there. And if you see an opportunity to kind of translate that kind of strategy also to kind of your core Western markets as well, if you're seeing kind of good returns.
Yes. I mean, generally, I'll say for our marketing, per our shareholder letter this time, the vast majority of our marketing is geared towards just viral stuff that we don't even pay for. In some cases, particularly in Asia and LatAm, we have found that working with paid influencers, it actually makes a lot of sense. And we've gotten really good results with that. We have not gotten as good results in places like the U.S. for influencers. And in part, that's because influencers in the U.S. are just very expensive, and we don't see the returns. I mean for similar types of video views or something like that in the U.S. versus in a place like Brazil or something, the difference in price that you have to pay an influencer, I don't know off the top of my head, but it's something like 10x. And you just don't get the 10x returns. It's just much more expensive to get a pay Beyonce to do something versus to pay whatever the equivalent in Brazil is over Beyonce. It's just much cheaper. So we have not cracked that, and I don't know if we ever will. For now, our -- in markets like the U.S., our marketing is just much more Owl doing unhinged stuff on TikTok or on YouTube Shorts and stuff like that, and that has worked really well.
Got it. That makes sense. And then just one on gen AI, right. I think you kind of talked about a healthy product roadmap for Max. Do you see an opportunity for in-app purchases products from gen AI? Or is the primary focus right now just driving kind of a premium here on Max and maybe in that purchase is something down the road that you can kind of layer in over time?
It's the latter. I mean there's definitely an opportunity for in-app purchases for almost everything we do. But historically, we just -- our subscription business is just so good. That's where we are putting our effort in. And at some point, once we've really nailed what Max will be like, we may start selling some of these features a la carte or we may start having kind of power ups or something like that. But for now, the effort is going into the higher tier subscription.
Makes sense. Great. Thank you.
Thanks, Zach. All right. So I'm not showing any other further questions. So I'll turn it back to Luis to wrap up.
Thank you, Debbie. I'd just like to thank everyone for joining us, and we look forward to speaking to you in November. If you haven't watched it, watch the Barbie movie, we're there. And have a great evening.