Use your hips. Oh my god, what time is it? Crap, it's number 59 and it almost missed street. What are you doing? You can't miss me street, it's number 67. Legate. Sadoa Ligo, this is not the time to buy it. I'm sick of it, I'm sick of it. This is not a language, it's a little bit everyday. I think most people would agree that this will be an exception to that rule. Legate de bono aho. Can you at least silence it? Are you serious right now? Yes, I'm very serious. I'm going to come conversation, I'll have to write some enlistance. It's part of the book. Oh my god, cool. Get more with it. Oh no, do a lingo, crap with time. It's just hit me night. No, my street. I have like 90 days. I know. You got a stand-top thing, I was just down there. I know. I know. I know. I know. I know. I know. You got a stand-top thing, I was just down there. I know. I know. I know. I know. I know. I know. I know. I know.
用你的臀部。天哪,现在几点了?糟糕,它是59号街,几乎错过了。你在干什么?你不能错过我的街,它是67号。Legate。萨杜阿·利戈,现在不是买它的时候。我受够了,我受够了。这不是一种语言,是有点日常用语的。我想大多数人会同意这将是对规则的一个例外。至少可以把它调成静音吗?你现在是认真的吗?是的,我非常认真。我要进入谈话,我得写一些记录。这是书的一部分。哦天哪,酷。跟上节奏。哦不,Do a lingo,时间到了。它现在已经到了晚上。不,我的街。我还有90天。我知道。你得抵达,我只是在那里。我知道。我知道。我知道。我知道。我知道。我知道。我知道。我知道。
We hope you enjoyed that fun TikTok. It's one of the many examples of organic learner-generated content that goes viral every day without any involvement from us. And we love to see the creativity and enthusiasm of creators like this, which continues to drive our brand awareness and word of mouth growth. And now let's get on with today's call.
Good afternoon and welcome to Duolingo's fourth quarter and full year 2022 earnings webcast. All attendees are in listen-only mode. Today after market close, we released our year-end shareholder letter with our Q4 and 2022 results and commentary, which you can find on our IR website at investors.duolingo.com. On today's call, we have Luis Fanon, our co-founder and CEO, and Matt Skarupa, our CFO. They will begin with some brief remarks before opening the call to questions. Analysts will be able to ask a question by using the raise hand feature. And please note, this event is being recorded.
Just a reminder that we'll make four 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 our risk factors of our filings with the SEC. These four 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 will present both GAP and non-GAP financial measures on today's call. These non-GAP measures are not intended to be considered in isolation from a substitute for or superior to our GAP results. And we encourage you to consider all measures when analyzing our performance.
And now I will turn it over to Luis. Thank you, Debbie. And welcome everyone. I'm pleased to report that we finished 2022 with a record quarter, achieving our highest ever number of DAUs and subscribers. We ended Q4 with 16.3 million DAUs, which is 62% year-over-year growth. And we ended 2022 with 4.2 million paying subscribers, which is 67% year-over-year growth. These metrics led 2022 to be our best year ever in terms of bookings and revenue, which grew 46 and 47% respectively. It was a fantastic year.
Our DAU to MAU ratio, which is an indicator of user engagement, improved to 27% this past quarter, up from about 24% a year before. We have also seen the number of learners with long streaks grow immensely. To remind you, a streak is the number of consecutive days that a user learns with our app. This mechanic has proven to be an efficient tool for encouraging engagement and helping us grow DAUs. 63% of our DAUs now have a streak of 7 days or greater, which is up from 53% last year. What's even more impressive is that we now have over 3 million DAUs with a streak of over one year. That means that more than 3 million people use Duolingo every single day for the last year or longer. It's also impressive that it took us 8 years to reach 1 million DAUs with a year long streak and only 21 months to get from 1 to 3 million. This is one example of the compounding effect of our product improvements.
Our user growth was strong in every region of the world. We also have users of nearly all ages of all socioeconomic statuses and who have a variety of motivations to learn, including work, school, and travel. The result is a diversified business that has been largely uncorrelated with macro and geographic trends.
Our investments in monetization have also shown the power of compounding. Over the past 2 years we've seen conversion increase across nearly all cohorts. Users who are new to the app have converted more readily to our paid subscription and users who have been on the app for longer periods like multiple years have also seen an increase in their conversion rates from free to paid.
And now I'd like to discuss what you should expect from us this year. In a lot of ways, we expect 2023 to look similar to 2022. We expect users and bookings to grow nicely. We still have a massive $60 billion addressable market that we have only barely penetrated and we have strong organic growth on our side. And I want to remind you that currently our subscribers make up about 8% of our monthly active users, so we have plenty of room to further monetize our current user base.
We also have an attractive opportunity to increase bookings from Alacard in our purchases like we did in 2022. But I do want to point out again that you should not expect any bookings from our math or literacy apps this year. As to where we'll invest the majority of our engineers, designers and product managers will continue to build on the success we've had in growth, efficacy and monetization. That means they will continue to run experiments to increase DA use and engagement, improve how we teach and optimize how we convert free users to paid.
And in our shareholder letter, I discussed the two additional areas we're focused on in 2023. The first is generative AI, which will power a higher tier dual-ingle max subscription, as well as help us reduce content creation cost. And the second is improving how we teach and monetize English learners. I'd like to emphasize that we are excited about these initiatives, but they are still in the early stages.
And I also want to touch on profitability. Coming off a strong 2022, we are well positioned to grow users and bookings rapidly, while also delivering higher profitability. We plan to continue to compound the returns we've seen from our past R&D investments, so we don't plan to hire as many people as we did last year. Just to remind you, we've never gone nuts with hiring, and in fact we've grown revenue at about twice the rate of headcount in the past four years. This year, we plan to show operating leverage across all costs, R&D, sales and marketing and G&A. Given those strengths, we're guiding to a 10-12% adjusted EBITDA margin for the year, up from about 4% in 2022.
And with that, I'll turn it over to Matt to talk more about our financial outlook. Thanks, Louise. To quickly recap the highlights of our impressive Q4 and full year 2022 results. In the fourth quarter, we delivered 39% bookings growth year every year, which was about 46% on a constant currency basis. We saw 42% revenue growth year every year, which was 47% on a constant currency basis. We had a net loss of 13.9 million compared to a net loss of 17.5 million in the year ago quarter. We posted our highest quarterly adjusted EBITDA, the $5 million, which was a 5% adjusted EBITDA margin. And we had a free cash flow margin of about 11%.
For the four year, we delivered 46% bookings growth year every year, which was about 52% on a constant currency basis. We saw 47% revenue growth, which was about 51% in constant currency. We had a net loss of 59.6 million compared to a net loss of 60.1 million last year. We saw a just EBITDA positive 15.5 million compared to an adjusted EBITDA loss of 1 million last year. And we had a free cash flow margin of about 12.5%.
In 2023, we expect to continue delivering strong bookings growth. And we will do so while making progress towards our long-term profitability goal of an adjusted EBITDA margin of 30 to 35%. For the four year 2023, we are guiding to 532 million total bookings, 486 to 498 million dollars in revenue, and an adjusted EBITDA margin of 10 to 12%, which translates to about a 32% incremental margin at the midpoint.
And for Q1 2023, we are guiding to 127.5 to 130.5 million total bookings, 111 to 114 million dollars in revenue, and an adjusted EBITDA margin of 9 to 10%. Our guidance assumes current prevailing foreign exchange rates. As a reminder, roughly half of our revenue comes from outside the US, so every 1% increase or decrease in the value of the dollar versus our basket of currencies has about a 2 million dollar headwind or tailwind respectively on full year total bookings.
At the prevailing exchange rates, we've used our guidance. Foreign exchange is expected to be a 3 percentage point headwind to Q1 2023 year-over-year bookings growth. In terms of quarterly cadence of our bookings for the remainder of the year, we expect our year-over-year growth for total bookings in Q2 to be about the same as Q1. We expect Q3 year-over-year growth rate to be slightly higher, and we expect Q4 to be our biggest quarter in terms of dollar bookings. Given our outperformance in Q4 of this year, it will be a slightly lower growth rate.
As to pricing in 2022, we lowered pricing prices in several countries to get our prices more in line with each country's GDP per capita. This initiative and our intentional mix shift from monthly to annual plans was to increase the overall LTV of our platform. And that drove down subscription revenue per paid sub. But we're done for the most part with lowering prices globally, and in fact, based on strong conversion trends, we believe we have the opportunity to raise prices in some places and are experimenting with pricing as we speak.
We have not included any material amount of bookings or revenue from dual-ingo max and our guidance, since we've only just started testing it, but we'll provide you with an update when we report Q1 results. I'd like to emphasize that we are focused on managing the business so that we achieve our full-year adjust EBITDA margin of 10 to 12%. We'll be making spending decisions throughout the year, based on our revenue and gross margin trends, to ensure that we are in this range for the full-year.
Also, to remind you, given the seasonality of our revenue, our Q2 and Q3 margins will be slightly lower than Q1 and Q4 will be higher. We will continue to run the business with discipline and prunely manage our expenses. Starting in Q1, we expect to see meaningful leverage in total non-gap op-ex compared to the fourth quarter of last year. And in 2023, we expect to achieve about seven and nine percentage points of operating leverage in total non-gap op-ex.
For both periods, the improvement is mostly in sales and marketing in GNA into a lesser extent in R&D. We ended the year with approximately 48 million fully diluted shares outstanding using the year-end closing price. In 2023, we expect to end the year with about 2% dilution from equity issue to employees, which is less than the roughly 3% dilution we had in 22. And with that, I'll turn it back to Luis.
Thank you, Matt. Before we get into Q&A, I'd like to thank our very talented team of DOs who continue to find new ways to innovate and delight our learners. And now we would be happy to take your questions. I'm going to turn it back to Debbie to manage the queue. And here we go.
Okay, thanks Luis. And as I mentioned earlier, if you have a question, you can just use the raise hand feature. And the first question comes from Ralph Shackert of William Blair. Good afternoon. Thanks for taking the question.
First question, the shareholder letter, I think you called it a, quote, super end of 2022. I think that may incorporate some of the beginning of the year campaign that you you run the track new users. Just curious what drove the really strong performance in the year end. And then how does your New Year's campaign compare to expectations that I haven't followed?
Thank you. This is a great question. So yes, we had a great Q4, great year end. And there's two main reasons. The first one is just a compounding product improvements. I mean, we've just been getting better and better at making our products stickier and attracting more users. We have a very high performing growth team that does that. So that's one thing. And then another one is some of our marketing campaigns were just did really well. A good example of that was a year in review campaign where, you know, towards around December 14 or so or December 10th to December 14th. And then all the users get a summary of what they, you know, what they did throughout the whole year. And they're expected to go out well, they're encouraged to share it.
We got a lot of shares millions and millions of shares. And we know we hit, you know, top trending topics on Twitter and stuff like that by just having people share their, their dual and go stats over several days. So stuff like that really helped us do the performance in terms of the New Year's campaign. And we started just for reference, we start a New Year's campaign on December 28th, usually every year. And it goes all the way to January. So for this, you know, for this quarter, this about, you know, three, three days, ish of campaign. And, you know, they perform better than we expected. And the reason for that out performance just has to do with the fact that every year we take the learnings from the previous year of the campaign.
And we just get a little better. So every year we run a few A B tests to try to make the campaign more effective. And we take those learnings for the next year. So that, that worked out pretty well for us. Right. Thanks, Luis. Maybe just a quick follow up. Just in terms of Dows, I think you reaccelerate for six consecutive quarters, which is pretty tough to do. But just maybe some color, what's driving the strong acceleration and growth. And thinking the prepare remarks you talked about sort of broad base, but were there any sort of one or two regions that's stronger growth than others. Thank you.
Yeah, it's a great question too. So in terms of regions, it really is growing in every single region in the world. If you want to know stronger regions, the US is particularly strong, Asia, especially particularly strong in Western Europe is particularly strong in terms of growing DAUs. And in terms of why it is, I mean, it's again, the same two reasons. It is a continuous product, continuous product improvements that just compound over time. The product is just better and stickier. And then we just get better and better at figuring out what strikes a chord with marketing.
So things like our social media campaigns, like our TikTok campaigns and our Twitter campaigns. And also some of the influencer work that we do. And some of the stuff is stuff we don't even do. For example, we just saw this video at the beginning of this of this call that these are these are entirely organic videos that other people make is almost every single day. I don't know if it is a fact that every single day in the world, but almost every single day there is an organic video that goes viral that mentions to a link.
So all of that just keeps getting you know keeps growing our users. Thanks, waste. Appreciate it. Thanks, Ralph. And the next question comes from Justin Patterson of Keybank.
Great. Thank you very much. Luis recently there is a really interesting post from the duo link a blog about just using data science, optimize DAUs. I think current user retention rate was that the metric you've been optimizing the past few years. I would love to hear more about just how you're using a lot of these top down statistical models to really drive DAU growth, link the product team together. And then you know now that you've gone pretty far with the current metric how you're thinking about tailoring that to individual cohorts. So more of a bottoms up approach to take advantage of things like say Gen Z having much shorter attention spans and making sure they're still having healthy engagement. Thank you.
So I'm glad you read that blog post. We're very proud of our growth model. You know, over the years we've just gotten significantly more sophisticated at analyzing our user base and making changes that that improve certain cohorts. In this in this post we we mentioned what has been the I would say the single most important metric for this company over the last several years, which is called something we call Kerr or current user retention rate. But that is it is the rate of people that if they were here today and they were here over the last one other time, at least over the last seven days, what is the probability they're going to come back tomorrow.
That's current user retention rate. That number is around 80% right now and we've increased it you know over the last you know two, three years we've increased that number from about 65% to about 80% and every one percent increase of Kerr increase our DAU's by a lot. And so you know that model has been you know really helped us and we keep getting more and more sophisticated you are right we're starting to you know this was a model you know at first when you're when you're just you know before this growth model we would just treat all our users in one cohort.
Then we started getting more sophisticated and we treat kind of new user current users etc now we're getting even more sophisticated than that. So I don't think we have a specific thing for Gen Z that we do but we are you know relatedly we are making our sessions shorter and shorter because you know like you said they have a shorter and shorter attention spans. Thank you. Great and next question comes from Andrew Boone of JMP.
Thanks for taking my questions can we start off with just any learnings from in app purchases I saw that it doubled this last quarter you talk about what successes are there and then how we think about that for 2023 and then secondly on profitability. Matt talked about real contribution margin kind of especially in the back half this year is there any reason to think that that steps down as we think about kind of a three year plan or something beyond this upcoming year thanks so much.
I can take the IP question man and then you can take the next one so for for in-app purchases yeah we have a very high performing team behind this that is that is just making in-app purchases you know more and more prominent more and more successful in the app as you saw they've been growing very rapidly we expect them to continue growing rapidly this year. And in terms of learnings you know the the main way we do in-app purchases by the way is by selling gems so there's this in-app currency called gems that you can either earn by doing stuff on you know on the app or you can also buy them.
And then you can use gems to buy other stuff you know kind of power ups in the app one of the main power ups that we use in the app is these timer boosts that help for certain time lessons so we have these. You know most lessons on doing or not timed but there are some lessons that you can do some practice lessons that are timed and the idea is that if you're not very fast you run out of time where you can buy these timer boosts with gems and there's you know those time your boosts get a lot of people to spend on may not purchases. This is the type of stuff you're going to get to see us do so in general for us for in-app purchases we're not going to be selling content within a purchases but mainly we're going to be selling gamification things that people really like and so far that strategy has been working pretty well.
Great and then on profitability. Andrew the profitability increased in 2022 by about 450 basis points from 2021 on an adjusted you but basis which was good progress you know towards our long term profitability goal of that 30 to 35% you know this year we're guiding to 600 to 800 basis point improvement over that. So as we look out you know kind of in the into the longer term our goal hasn't changed we want to be at a 30 to 35% adjusted but the margin and between last year and we're guiding to this year we think we're showing you know the right progress towards that goal.
Thank you. Thanks and then the next question comes from Ryan McDonald of need him. Thanks for taking my questions and congrats on a strong close to the year. Louis so start with you on on the dual English test there was recently a a ban in China from the government on online degrees that a Chinese citizen essentially is taking a fully online degree from an international university. So it's not a recognizing that degree and it seems like this is going to start creating sort of a shift in a reflection point and more Chinese learners looking to go in person overseas. You know just curious if you've seen any impacts of this those far on sort of applications or signups for the the dual English test and how you think or what your expectations for that are in the 2020 year.
Thank you for the question we we have not seen any impact based on this and I think there's there's many reasons I mean for one. Yes China is a relatively large chunk of the the dual English test test takers but we really have test takers are all over the world. The other thing is the reasons for taking the tests are very varied you know some of them is people who are applying for international. Undergraduate admissions there's also graduate admissions there's transnational education there's there's all kinds of different pockets and you know maybe one pocket you know has has some some sort of policy implications to it but in general the pockets are pretty healthy. That's that's kind of one thing the other thing is we are still you know we're not the the leader in this market we are the in the we're coming into this market with an online test and it is a market that usually has had all these offline tests. Given that we are still in the you know in the kind of growth phase of this we don't you know it doesn't affect us too much when there's something you know that changes the full volume of it because we're we're coming in. You know with with whatever percentage of tests we have which is you know significantly on their 25% it's we're still growing quite a bit and pretty fast so this is not something that we're that we're seeing yet.
That's all we appreciate it and then maybe as a follow up you talked a lot about generative AI use of that and I'm very curious around the content creation you mentioned the increased focus on on sort of more advanced English content for nine English speakers or basic English speakers. How quickly do you think that the generative AI can compress your content creation timeline and how do you manage for quality in that and then from that you know are you assuming any within your your the leverage you know that you're showing this year on the profit margin side are you assuming any leverage from that content creation from genitive right thanks.
Yeah thank you for the question so we're very excited about generative AI and just to put things into context you know a dual angle we've always lean in into AI from the beginning I mean a lot of our products are built based on AI etc over the last couple years generative AI has has become significantly better and we're definitely going to lean into this as well.
Now you mentioned content creation that's one of the places where we think that that it can help us a lot and to speak things up quite a bit it's a bit early for me to give you a precise estimate of how much you can speed it up but we are certain I mean it's already happening we're already speaking things up and also lowering costs. One of the places where we're using that is to be able to create much more English learning content so you'll see us create a lot more that in terms of quality assurance we're still going to have humans go over it but the time frame you know it used to be the case that all of this was almost entirely generated by humans by now it's just has to be reviewed by humans and it's a lot quicker to review than to generate.
So in terms of time frame we're going to get a massive increase in that and I assume it's the same for cost. So yes this is something we're very excited about and you know the other thing I should mention about generative AI so content creation is one of them and we're going to definitely use that but it also is going to help us just create better experiences to our users. Kind of more online conversational practice that we're going to be able to do and that's the type of stuff that we're putting into our new higher tier subscription do a link of max.
So this is something we're very excited about as a company where we you know we've partnered with open AI and and we're going to be working very hard on this. Yeah and Ryan Luis answered the question for the guide I mean we only included in the guide things we have direct line of sight into it's not you know generative as so new we don't have a ton of line of sight into direct savings yet but as we said you know over time that's probably the way to bet.
Thanks Ryan and the next question comes from Aaron Kessler of Raymond James. Thank you a couple questions made from Matt on the peak conversion rate was very strong key for can you talk about that was that family plans a part of that and then how should we think about making peak conversion in 2023. And then maybe any updates and even tests maybe kind of human tutoring as well as any kind of thoughts on that direction as well, especially as many of the relates to doing on max how you talk about thinking about integrating that as well.
So I'll let Luis in answer that last part for the. Hair penetration you know we had mentioned I think throughout most of last year we expected a 1 to 2% increase each quarter year over year in that metric and that's coming from all the things that Luis has described before that all the product improvements the compound over time. And then we're going to make our free to pay conversion go up in general it wasn't any one particular item like family plan or this or that it was all them compounding over time.
I think going forward as we mentioned on I think it was either the Q two or Q three call last year. Given the growth in MAU so that the nominator of that number is just growing really, really nicely. And the retention trends we would expect it to actually instead of adding one or two points every quarter year of year be closer to you know one this year. Just because again that denominators growing really nicely so it will ultimately turn into subscribers over time. But in the short term it'll be about you know one point.
And then we want to talk about max and tutors. Yeah and human tutoring I mean the first question was about human tutoring or the second question was about human tutoring. This is over the years we've waffled on human tutoring at first we launched a dual angle with no humans involved then we tried it we tried putting it in we tried. And over the last year we've made the the decision that I think is the right decision that we are not going to get into human tutoring at all we've tried it we are out.
And there's a number of reasons for that. There's nothing we it's not like we have anything against human tutors is just in on our end we are a technology company. And that's what we excel at. And in addition to that if you look at it you know human tutors are great but they're not getting any better they're just there. Whereas technology in particular AI and in particular a lot of the stuff coming from genitive AI is just getting better and better every year.
And we're not going to get any better than that. Much in the same way you know like 10 years ago we were told we could not teach a language with synthesized computerized voices. We bet on that even though 10 years ago synthesized computerized voices still sounded kind of robotic today they sound excellent. We feel the same with with AI that that you know in in five years so I don't know how five 10 years it we will be very happy that we'll have that on technology rather than.
And next question comes from Nat Schindler from Bank of America. Yes thank you. I actually want to just go a little deeper on some of the questions you have before really about how the users have changed. You saw dramatic acceleration in both. The users and paid subscribers over this year versus the prior year is there been a real change in the demographics of those. Is there anything substantially different about users this year than their word last year.
That's a great question. If there has been a small there's you know generally our user base is very wide. We have users from every single country in the world you know every single country in the world is represented. We have users from every single socioeconomic status from you know all ages as long as they know how to read so it's kind of from six years to about a hundred. We just really have users from all over the place and it's very wide user base. So it hasn't changed too much. The one thing we've noticed is it has gotten slightly ever so slightly younger. And that probably has to do with a lot of our prominence on social media like TikTok. But that's it so we haven't really noticed too much of a change.
And as those changes towards going slightly younger is that happened in both free users and paid. And I know that it's honest answers. I don't know. I know that it's free users is getting slightly younger. I don't know for paid. I maybe it may be. Yeah, I'd have to go back and double check that on on the paid. I think what we've seen on paid is that the conversion. Trans haven't really changed some of accelerated for example just overall conversion of. Kind of cohorts across the board has has increased over the course of last year.
So folks who are new to the platform, you know, in the first couple of months. They converted more rapidly than in 2021. Folks have been on the platform for a long period of time they converted a little bit faster than they had in the past. We've always seen that people who use the app more convert more. You know that stayed the same or got a little bit better. So yeah, it was kind of a broad base just like our users grew around the world. You know in a pretty broad broad based way. It was the same trend on the free to pay conversion.
Thank you very much and once again very impressive. Thank you. Thanks, Nat. And next question comes from Mark Mahaney of Evercore. Two questions. You had this line in release about how the number of returning users is roughly the same as the number of brand new users. I would just have assumed that that was always been the case or you know it's been the case for a while. But is that something new that's happened because I get your point about how you know people will use it and then you know they'll either come back to it when they realize importance of learning a new language of there'll be another opportunity. Maybe they're traveling to a different country.
So is that a new trend or not? What's the so what out of that? And just real quickly do a math. That math product just where is that you still tweaking it is it far from being where you want it to be just talk about kind of adoption. How much interest you've really seen in that. Thanks.
I see for your first question. This is not a new thing. It's been a while since returning users are the same as new users. I'm going to assume at the very early of Dueling that was not the case. But it's been a while that it's been like that and and and you're right. You know it is rare for us to see a user that uses Dueling go goes away and never comes back. That is rare. Usually people may even go away for two years and then come back. It's just because because there's such such a little friction.
So we see that and you know the reason we put that there is is mainly to to emphasize that. It is not right to think of our users as coming having turned and been gone forever. That is rare. It's more that they come they stay for a few months or something they may take a break for a couple of months and they come back or something. So something like that. In terms of math, we're very happy with the progress is growing rapidly.
We're happy with that just to remind you of the plan. We are right now the goal is to grow our math product organically. For it to grow by itself once we get to a pretty decent number of users call it a million daily active users. I'm you know this is kind of you know it doesn't have to be exactly a million once we get there. We're going to say okay great. We have good product market fit. It is time to start monetizing. We're not there yet, but it is growing pretty nicely. And so we're happy with the results in terms of tweaking. Yes, we're working very hard on tweaking the app. We're adding a lot of the features that we know work well on the main Dueling go app to the to the math product.
So improvements to the streak. You know we're thinking of adding things like leader boards better notifications. So a lot of the stuff that we've learned over the last 10 years on Dueling go. And that we have the code for we're starting to add to the math app to get it, you know, to have higher retention. We're also adding more content to it. You know one of the one of the things that happens with the math app right now is that people actually run out of content because. You know if you're very happy turns out we have some very heavy users that use the whole thing and then they kind of run out of content. So we're adding more content to it. So you'll see us over the next year. I just make the product better and better and because of that it'll continue growing.
我们正在改进连胜。我们考虑添加排行榜和更好的通知等功能,这些都是我们在 Dueling go 上最近十年学到的东西,现在我们将它们加入到数学应用程序中,以提高用户保留率。我们还会添加更多的内容,因为我们发现,目前很多用户用完了全部内容后就不再使用了。所以在未来一年内,我们将不断完善产品,增加更多的内容,保证其持续增长。
Okay, thank you Louise.
好的,谢谢你,路易丝。意思是对某人的感谢。
Next, Mark. Next question comes from Eric Sheridan of Goldman Sachs. Great, thank you. Maybe first question will be following up on something that was implied in marks. First question travels obviously been a big tailwind and the shift to services over goods has been a big tailwind in the macro economic environment. Can you talk a little bit about what you've seen with travel potentially as a catalyst for usage, both top of the funnel and bottom of the funnel as that's continued to build momentum and how maybe as result across border travel continuing to return.
That could be a nice tailwind for the business going forward over 2023 and beyond. And then the second dynamic would be you talked a lot about virality and tick tock. Can you talk a little bit about where you are excited to experiment and think about marketing or building virality on platforms on either the content side or the distribution platform side, maybe even away from tick tock and how we should be thinking about that building in the years ahead. Thanks so much.
Let's see, in terms of travel, we don't see in our metrics that more and more people are using dualingo for travel. We did see a very temporary dip in the height of COVID a couple of years ago that like a few are slightly fewer. Since then it's been about the same. And we just, you know, travel is interesting for a lot of people like us that are, you know, to be honest from the world wide perspective, pretty wealthy. I think travel is like a big motivation for using dualingo, but for a lot of our users, you know, they're using it to learn English or as a hobby or something. So we don't see these things that's like, oh my god, travel has opened up and therefore dual English exploding. That just we just haven't seen much of that.
We do ask when people sign up why they're using dualingo and some fraction tell us they're using it for travel. I don't know the number off the top of my head. I'm going to assume it's something like 15% tell us that is that they're using it for travel. But it's just not something that we, you know, that we look too much to.
In terms of your second question about virality. So, you know, so far we have experimented with a few social media platforms to get our word out by the way. And this is mainly organic. I said, we don't we don't pay for this stuff. We just make really good content. TikTok has been really good for us. Not just TikTok in the US. We've actually localized our TikTok to, you know, Portuguese and Spanish and another language. So one of the things that we're excited about is a TikTok accounts in the other languages. They're actually growing really fast and it's actually amazing how, by the way, this is this amazing thing about Brazil. Anything you do with social in Brazil does well. And so as soon as we put, you know, TikTok in Portuguese, it just kind of went nuts. If you go see those videos, they're amazing. We just had dual dressed up as Wednesday from the Netflix show Wednesday. And it we, you know, we got, I don't know how many 10 million views or something. So we're excited about platforms like, like TikTok and actually also Twitter. We're doing pretty well in Twitter.
Now, when you ask about virality in general, another thing that we're doing is we're just adding a lot more things inside the product. It's not social media or anything inside the product to get more people to share things. And we now have a team behind it. It's a really good team too. And they are able to get a lot more people to share things.
One of the main things that people share, there's a now way to share sentences much more easily. One of the main thing people share are weird sentences that they see on dual English. Some of the courses for one reason or another have very weird sentences. You know, I don't know if I can think of one of them like the German course has something like the sentences something like right next to the bed, lay the body of the husband or something like really weird stuff that people share. And that, you know, that that just gets a lot of people.
So we're working on getting people to share like that. And it's working out pretty well. Thank you. Probably wrote that question about the sentence about the husband, but okay.
Next question comes from Mario Lou of Barclays. Great. Thanks for taking a question. So the first one's on App Store fees. Just curious your thought on the recent trim of apps bypassing the App Store, for example, you know, games like Fortnite and apps like Spotify Netflix have done this for a while. But more recently more traditional mobile games are implementing like a directed consumer payment method. Just curious your thoughts on any initiatives that you guys have on your end.
We're not currently working on that. You know, for us, we love the App Store. Obviously, it's hard to say that we wouldn't love it if they decreased their fees. Of course, we would. But we do really well with the app stores. They're an amazing distribution mechanism. And the thing when you go off App Store is that it's harder to distribute your product. And also it adds quite a bit of friction.
One of the amazing thing about the App Store is that people already have the credit card in there and they just have to tap once and it gets there. So you may be able to lower your fees, but you add so much friction to your users. That you know, it's not clear to us that we would make that much more money. It's something that we're always thinking about and may eventually do it. But it's not something that we're currently working on too much. Remember, Maria, we did get quite significant bump from Google lowering their apps App Store fees last year. So got it helpful.
And then second one is just on kind of changes to doing what happens. So I believe, you know, past week, or as you talked about the change to the single learning track being at parity. And any updates to that. And just in general, how do you balance between kind of optimizing for learning and versus having a more casual app that kind of attracts the masses.
So I think just user feedback could be like a loud minority, but the removal of like things like oral prompts or type answers. I believe got some negative feedback. So just want to hear your thoughts there. Thanks.
Maria, you read Reddit. Yeah. So it's a great question about the changes to the app. So we've made we made some pretty significant changes. We're always making the app better. I mean, this is what we work on. This is what we spent so much on R&D. We're literally always making the app better.
Over the last year, we made this large change to our home screen going from, you know, giving a lot of choice about what to learn next to this linear path. The main reason we did that linear path, by the way, was to teach better. We noticed that we were when we were giving people so much choice what was going on was a significant fraction of them. We're just coming into extend the streak with really easy lessons that were not actually getting them to learn. Whereas now with the linear path, we've encouraged a significantly larger fraction of users to whenever they come to increase their streak. They actually also learned something. So we with the main reason we did that was actually to teach better and also to simplify our product, which has really helped us. But that was actually to teach better.
You know, the way we think of it is when we're making changes, we look at we have we have three things that we're improving. We're improving how well we teach. We're improving how engaging the app is so basically, you know, how much time people spend on it, how, you know, retention, et cetera. And we're improving how well we monetize. And we have large teams behind each one of these kind of group of metrics. And what happens is that each team, for example, there's the monetization team what they're trying to do is get more people to subscribe.
Whenever they run a test to try to get more people to subscribe, what we enforce is that they cannot screw up the other metrics. So yes, you can get more people to subscribe, but you cannot decrease, you know, our number of DA use. You cannot decrease the time people spend learning or you cannot decrease the learning outcomes. Similarly, when we get people to the group of people that is that is dedicated to teach better, we tell them, okay, you can you can you can make changes that teach better, but you cannot screw up the monetization or you cannot screw up the, you know, the user engagement. That's how we balanced it. And we found that that works pretty well. And most every change in the app, you can actually trace it down that change was made by the group or by the team of people that is trying to make us grow faster or make us make more money, etc. And so, so that's that's how we do it. Hopefully that that gives you some color.
Yeah, I still can hear you. Sorry, can you hear me now? Yes. Yes. Oh, perfect. Yeah, second's my first question is, you know, among the management team, who has the longest streak in terms of usage, but let me know how to say it. But I don't know the answer to that question, but I'm willing to bet it's me. I'm willing to bet it's me, but I don't know the answer. It's Luis. Yeah, we can be pretty sure about that. Thank you guys.
Yeah, yeah. So, you know, really good metrics, the user engagement and, you know, kind of the revenue growth and bookings, but, but I know there's a whole lot of other metrics you track. That beyond what you'll share with us, you know, so can you conceptually, if you're not able to share your hard numbers, I able to conceptually share a bit more underneath on some of the metrics that's giving you confidence in kind of the shape of the growth for this year. I mean, I don't know if we can share precise numbers of, you know, but there's the certain things that we share this and stuff that we don't share, but we do track a lot of metrics.
In general, as I was saying before, there are three groups of metrics. There is what we call the growth metrics, which is just usually, you know, our entire user base, you know, are they are they using the product more. More DA use, etc, there is the monetization metrics, which is, you know, how much money we make basically and then there's the metrics about how well we teach in each one of them, we have a ton of metrics in terms of growth, some of the things that at least I look at I look at I look at time spent learning. I look at DA you to MAU ratio, I look at resurrection rate so you know, kind of number of people that are being resurrected. I look at the retention of resurrected users, I look at the retention of current users, I look at the retention of new users. So that's the type of stuff.
一般来说,如前所述,有三大类指标。首先是增长指标,通常是指我们的整个用户群,他们是否更频繁地使用产品,更多地使用 DA 等等。其次是收入指标,即我们基本上赚了多少钱。第三大类则是关于我们在每个领域里教学的水平的指标。在这三大类指标中,我们有许多不同的指标来衡量增长。我看的一些指标包括学习花费的时间、活跃用户比例、用户复活率,也就是复活人数的数量。同时,我也会关注到复活后的用户和现有用户的保留率以及新用户的保留率。这些就是我们所关注的指标。
In monetization, the types of stuff we look at are things like, you know, conversion from free to paid, LTV retention of paying users daily bookings is something we look at a lot. Number of users or fraction of users that have an IP or do a purchase on an IP. In learning, we look at we look at a number of things, but one of the main things we look at is difficulty of the content that we're able to give out without scaring users all away. So you know, there's there's a lot of metrics that we track and you know, I don't even know all of them off the top of my head.
Yeah, that that that that's helpful and then you know, kind of booking growth, you know, kind of sitting externally in some sense is a bit of a black box, but you know, are you able to share like when you project for booking growth, what are the inputs that go into into kind of coming up to like a projections for booking, booking growth. I mean, we don't need to know the specific numbers, but just conceptually what what goes into into predicting user growth. Yeah, we just take a look at the book. Oh, sorry, like that. We just take a ruler and go up like that on it works pretty well. I'm kidding. Matt hasn't much better answer than that.
Well, you know, maybe not the, I mean, the main thing about with bookings growth growth is that you know, there's just the two dimensions, there's new bookings, growth, new subscribers and those renewals. And so on the subscription side and then you can add in ads obviously an IAP on the new users, Louise basically talked about how we have a really complicated model and mark off model.
If you want to read our blog post on our growth model, how we predict users and input into that is new users and that's combination of organic growth and marketing spend. So we predict new users that flows into some element of new bookings. And then we're just basically doing cohort math for our cohorts of new users over time to see what we think they will convert into.
We're adding into that for the subscription business the renewal cohorts, which we have really good data on at this point. I feel pretty confident about so you add that together you get your subscription bookings. Add in ads and IAP, which again are a bit. You know, less detailed in you know, the cohorts make a little less sense for that. And then you got bookings is really that simple.
Well, that's all we have for questions. So I'm going to turn it back over to Louise. Thank you for all the excellent questions and please, please, I beg you to your doing a lesson.