Users, Revenue & Engagement • SQ Magazine

Duolingo crossed over 50 million daily active users and surpassed $1 billion in bookings in 2025, both firsts since its 2021 IPO, per Duolingo’s FY 2025 results filing. Full-year revenue reached $1.04 billion, up 39% YoY, while Q4 revenue grew 24%, a sharp deceleration from Q3 and the trigger for the first management-directed growth-profit pivot since the IPO. Sections below cover users, subscribers, revenue mix, the Language Report top ranks, Duolingo Max AI adoption, and Duolingo English Test acceptance.

Key Takeaways

• Duolingo closed 2025 with 52.7 million daily active users and 12.2 million paying subscribers at the end of Q4, with monthly active users easing roughly 2 million to 133 million, record highs for DAU and paid subs, per Class Central’s aggregation of investor filings.
• Full-year 2025 revenue hit $1.04 billion, a 39% year-over-year increase, per Duolingo’s FY 2025 investor release, passing the billion-dollar mark initially.
• Adjusted EBITDA exceeded $300 million for FY 2025, and the board authorized Duolingo’s first-ever share buyback of $400 million.
• Duolingo Max, the premium AI tier, reached roughly 9% of the paying base by late 2025, up from 5% at the end of 2024.
• English leads study activity in 154 countries, per Duolingo’s 2025 Language Report, which is 79% of the countries Duolingo covers, a 14% rise from 2024.
• Per Duolingo’s engineering blog, over 5 million users hold Duolingo streaks of a year or longer, and more than half of all daily learners now have a streak of at least 7 days, double the share from a year earlier.

Editor’s Choice

• Q4 2025 revenue landed at $282.9 million with EPS of $0.84, beating consensus but guiding 2026 below Street expectations.
• Per Duolingo’s 2025 Language Report, Duolingo operates 280+ courses across 40+ languages, with 148 new courses launched during 2025.
• Per the test’s official acceptance report, the Duolingo English Test drew more than 700,000 test-takers in 2024, a 130% increase over three years.
• All 8 Ivy League universities and 98 of the top 100 US News-ranked schools accept the Duolingo English Test, alongside more than 3,100 US universities and over 6,000 accepting programmes worldwide.
• Users aged 16-34 account for roughly 60% of daily active users, with roughly 60% of US learners under age 30, with the 18-24 cohort the largest single segment.
• Per Duolingo’s Q3 2025 shareholder letter, paid subscribers climbed 34% year over year to 11.5 million, a record add for a single quarter.

Recent Developments

• February 2026: Duolingo reported its annual 2025 results. The board approved a $400 million share repurchase programme, the first in the company’s history.
• February 2026: CEO Luis von Ahn prioritizes user growth and teaching better, signalling a deliberate trade-off that will moderate near-term financial growth.
• February 2026: 2026 guidance set bookings growth at 10-12%, revenue growth at 15-18%, and adjusted EBITDA margin near 25%, all below 2025’s actual performance.
• December 2025: Duolingo’s annual learner trends report was published, showing that Japanese moved to the 4th most-studied language globally, surpassing German, and Korean moved to 6th, surpassing Italian.
• November 2025: Duolingo reported Q3 2025 numbers: 50.5 million DAU (up 36% over the prior year) and revenue of $271.7 million (up 41% over the prior year), its debut quarter above 50 million daily actives.
• May 2026: Duolingo scheduled its Q1 2026 results call for May 4, 2026, after market close. Consensus expects an initial full quarter under the growth-first guidance framework.

Duolingo Daily and Monthly Active Users

• Q4 2025 DAU reached 52.7 million, up from 50.5 million in Q3 2025 (up 36% over the prior year), while Q4 MAU eased roughly 2 million to 133 million.
• Q3 2025 DAU grew 36% year over year to 50.5 million, marking the milestone of 50M crossing.
• Monthly active users declined roughly 2 million in Q4 2025, from 135 million to 133 million.
• Through the first nine months of 2025, DAUs grew 40% or more year-over-year versus the same period last year.
• Management set a 100 million DAU target for 2028, implying roughly 20% annual DAU growth from the 2025 base.
• Initial 2026 guidance assumes roughly a 20% year-over-year DAU growth rate, below 2025’s 36-41% trajectory.

Source: Duolingo Q3 2025 and Q4 2025 shareholder letters

The Q4 MAU dip, while small, marks Duolingo’s initial sequential MAU decline since going public, and it lands in the same quarter the company shifted toward user-first guidance.

Duolingo Paid Subscriber Growth

• Paid subscribers crossed 10 million for the first time in Q1 2025, with roughly 38% year-over-year revenue growth, a company milestone.
• Q3 2025 paid subscribers grew 34% year over year to 11.5 million.
• Q4 2025 paid subscribers reached 12.2 million at the end of Q4 2025, up from 11.5 million in Q3 (a 34% year-over-year rise), while MAU declined by roughly two million to 133 million.
• Subscription revenue accounted for roughly 83% of total Q2 2025 revenue, the bulk of the monetization mix.
• Q2 2025 subscription revenue rose roughly 46% YoY to $210.7 million, outpacing overall company growth.

Source: Duolingo Q1-Q4 2025 shareholder letters

Citation Capsule: According to Duolingo’s Q3 2025 shareholder letter, paid subscribers grew 34% year over year to 11.5 million, while the Q4 total reached 12.2 million per the full-year earnings release, with MAU easing roughly 2 million quarter over quarter. Subscription revenue represented roughly 83% of total revenue in Q2 2025.

Duolingo Revenue and Financial Performance

• FY 2025 revenue totalled $1.04 billion, up 39% YoY.
• Full-year 2025 bookings surpassed $1 billion for an initial time in company history.
• FY 2025 adjusted EBITDA exceeded $300 million.
• Q4 2025 revenue reached $282.9 million, growing 24% YoY, a deceleration from 33% in Q3.
• Q3 2025 revenue hit $271.7 million, up 41% over the prior-year quarter.
• Q1 2025 revenue growth was roughly 38% YoY, the starting point for the deceleration arc through 2025.

Source: Duolingo FY 2025 earnings release, Q1-Q3 2025 shareholder letters

Per the Q4 filing, the company also authorized a $400 million share repurchase programme, the first in its history. Our breach cost tracking at SQ Magazine shows a similar pattern across tech filings: firms announcing buybacks alongside guidance cuts typically signal a shift from growth-stage to mature-stage capital allocation. Duolingo’s first buyback arrived the same quarter its growth rate halved, fitting that template.

Duolingo Max and AI Tier Statistics

• Duolingo Max represented roughly 5% of the paying base at the end of Q4 2024.
• Max penetration reached roughly 7% of the paying base in Q2 2025.
• By late 2025, Duolingo Max accounted for roughly 9% of the paying base, applied to the 12.2M total.
• Q2 2025 gross margin expanded roughly 130 basis points to 72.4%, helped by lower-than-expected AI inference costs.
• Applying the ~9% Max penetration figure to the Q4 2025 paid base of 12.2 million implies the Max cohort sits in the low-seven-figure range by year-end.

For context on AI product adoption curves across consumer apps, see our Claude vs ChatGPT statistics coverage tracker. Consumer adoption of AI-tier products typically lags capability shifts by a year.

Duolingo Guidance and the Growth-Profit Pivot

• Duolingo 2026 bookings guidance: 10-12% growth, versus the >30% pace sustained through 2025.
• 2026 revenue guidance: 15-18% growth.
• 2026 adjusted EBITDA margin guidance: approximately 25%, near the 2025 level despite lower revenue growth.
• Q1 2026 specific guidance: 11% bookings growth, 25% revenue growth, 25.5% EBITDA margin.
• CEO Luis von Ahn noted the 2026 plan will moderate near-term financial growth to accelerate user growth.

The deliberate growth cut is rare among consumer-software companies at this revenue scale. Management is funding the 100M DAU 2028 target by reinvesting in free-user experience rather than pushing higher subscription ARPU.

Most Popular Languages on Duolingo

• The 2025 top 10 most-studied languages are English, Spanish, French, Japanese, German, Korean, Italian, Chinese, Portuguese, and Hindi.
• Japanese advanced to the 4th most-studied position, surpassing German.
• Korean advanced to the 6th position, surpassing Italian.
• Spanish tops the list of courses with the most serious learners, followed by English, Italian, Welsh, and Norwegian.
• Duolingo launched 148 new courses in 2025, bringing the catalogue to 280+ total courses.

Chinese is the fastest-growing language in 12 major markets, including Argentina, Brazil, Colombia, France, Germany, Indonesia, Mexico, Poland, South Korea, Spain, Thailand, and Turkey.

Duolingo Country and Regional Statistics

• English is the most-studied language in 154 countries, representing 79% of the countries Duolingo covers.
• That represents a 14% increase in English-leading countries from 2024.
• Only 25 countries do not have English in their top two most-studied languages.
• The top polyglot countries, where users study 3+ languages, are Japan, Australia, Finland, Germany, and the United Kingdom.
• The most dedicated learners by average study time come from Japan, Hungary, Belarus, Russia, and Germany.

Source: Duolingo 2025 Language Report

Citation Capsule: According to the 2025 Duolingo Language Report, English leads as the top-studied language in 154 countries, up 14% from 2024. Japan ranks first in both polyglot learning (3+ languages) and average daily study time on Duolingo.

Duolingo User Demographics

• Users aged 16-34 account for roughly 60% of Duolingo’s daily active users as of Q1 2025, with another roughly 60% of US learners under age 30.
• The 18-24 age group is the largest single cohort on the platform, with roughly 60% of daily actives aged 16-34 and a similar share under age 30 in the US.
• Roughly 60% of US Duolingo learners are under age 30.
• The gender split is roughly even at 49.91% male and 50.09% female, with roughly 60% of US learners under age 30.
• Japanese and Korean are especially popular among Gen Z users, the roughly 60% of the base aged 16-34 and under 30 in the US, driven by cultural interest in anime, film, and K-pop.

Our Gen Z social media statistics cover the age brackets, driving Duolingo’s growth. Duolingo’s viral Duo mascot social presence matches the engagement playbook of platforms Gen Z already lives on.

Duolingo Streak and Engagement Statistics

• Learners who reach a streak of at least 7 days are 2.4 times more likely to return the next day than learners without a streak, with over 5 million users on year-plus streaks.
• More than half of daily learners now hold a streak of at least 7 days, with over 5 million on year-plus streaks, compared with about one-third a year earlier.
• Over 5 million users have held streaks of at least a year as of June 2024.
• The longest recorded Duolingo streak as of January 2025 was 4,003 days, held by user Christi3 for over 10 years of at least daily use, representing over 10 years of consecutive daily study.
• The streak system leverages loss aversion, a behavioural principle that supports long-term retention; over half of daily learners now hold streaks of at least 7 days, with over 5 million users on year-plus streaks.

Source: Duolingo Engineering blog, 2024-2025 habit research posts

Across SQ Magazine’s platform statistics pages, retention tools scale even as new-user curves flatten. See also our social media attention span statistics for competing attention dynamics.

Duolingo English Test (DET) Statistics

• More than 700,000 test-takers took the Duolingo English Test in 2024, a 130% increase over three years.
• In 2025, 1 in 5 international applicants to US universities applied using DET scores, part of more than 6,000 accepting programmes with over 3,100 US universities.
• The DET is accepted by more than 6,000 programmes and institutions worldwide, over 3,100 of them US universities.
• All 8 Ivy League universities and all 15 members of Canada’s U15 accept the DET, drawn from over 6,000 accepting programmes and more than 3,100 US universities.
• The DET is accepted by 98 of the top 100 US News-ranked US schools, including Stanford and MIT, and more than 3,100 US universities overall.
• More than 3,100 US universities and colleges accept the DET as of 2025, part of over 6,000 accepting programmes globally.
• Over 700,000 people took the DET in 2024. The 2025 testing cohort spans 219 countries and 148 first languages, with 55% of sessions from Asia, drawn from more than 6,000 accepting programmes.
• Africa’s share of DET sessions rose from 7% to 8.3% over the 2024-2025 cycle, part of more than 700,000 total test-takers.

Source: Duolingo English Test accepting-institutions blog, DET 2025 cohort data

Citation Capsule: According to the Duolingo English Test’s 2025 acceptance report, all 8 Ivy League universities and 98 of the top 100 US News-ranked schools now accept DET scores, with more than 3,100 US universities in the network overall. The test drew more than 700,000 takers in 2024 alone, growth of over 130% across three years.

Duolingo Course Expansion (Chess, Math, Music)

• Chess became the fastest-growing subject in Q3 2025, with over 40% combined DAU and revenue growth in the same nine-month window, the quarter it launched broadly.
• Duolingo now operates 280+ courses across 40+ languages.
• The company launched 148 new courses during 2025 alone.
• Among Latin learners, 19% also study chess, 14% also study math, and 13% also study music.
• Duolingo partnered with Luckin Coffee in Asia during Q3 2025, the same quarter revenue grew 41% over the prior-year period, a brand-moment marketing collaboration.

Source: Duolingo 2025 Language Report and Q3 2025 shareholder letter

The chess rollout gives Duolingo its first non-language vertical with clear product-market fit, validating the “teach everything” strategy outlined by von Ahn at the 2024 investor day.

Frequently Asked Questions (FAQs)

Conclusion

Duolingo ended 2025 with 52.7 million daily active users, 12.2 million paying subscribers (MAU eased roughly 2 million to 133 million), and $1.04 billion in full-year revenue, having crossed 50 million DAU and $1 billion in bookings for the first time during the year. The Q4 revenue deceleration from 33% to 24% YoY, combined with the first-ever $400 million share buyback, an MAU dip of roughly 2 million, and a deliberate 10-12% bookings guidance for this year, marks the clearest strategic inflection since the 2021 IPO. The 2028 target of 100 million DAU puts the focus on free-user growth and teaching better rather than near-term subscription upsell.

The stats matter most for three groups. Language learners benefit from 148 new courses and 280+ total course options across 40+ languages. University-bound international students benefit from Duolingo English Test acceptance at all 8 Ivy League schools, more than 3,100 US universities, and over 6,000 accepting programmes worldwide. Investors and competitors watch the Max AI tier, which moved from roughly 5% to 9% of the paying base over roughly a year, testing how quickly AI-augmented learning products reach mainstream adoption.

If the current growth pattern holds, Duolingo will finish this year with roughly 63 million DAU and continue pushing the Max tier toward 12-15% of paid subscribers. The trajectory looks less dramatic than the 51% DAU growth posted two years ago, but engagement depth, measured by streaks and cross-subject learning, keeps compounding in the background.