Companies · DUO
Duolingo
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Latest analysis
Updated Aug 10, 2026
Duolingo appoints Sallie Krawcheck, ex-Citigroup CFO, to Board; expands to 10 directors.
Duolingo expanded its Board from nine to ten directors on August 10, 2026, appointing Sallie Krawcheck, former CFO of Citigroup and founder of Ellevest (which scaled to $2.4 billion in AUM). Krawcheck brings three decades of financial leadership and governance experience across public and private companies, and will serve on the Audit, Risk and Compliance Committee. This move reflects Duolingo's stated focus on building Board expertise in financial leadership, strategy, governance, and global scaling as the company enters its next growth phase.
Tone: neutralRevenue
$1B
DUO 10-K · FY 2025
Employees
900
Revenue FY2024
$748M
Headquarters
Pittsburgh, PA
Profile
DUO 10-K Item 1 · Feb 27, 2026Duolingo is a mobile-first education technology company best known for its free language-learning app, which serves more than 130 million monthly active users across over 250 courses. The company monetizes through freemium subscriptions (Super Duolingo and Duolingo Max), advertising, in-app purchases, and the Duolingo English Test, a paid online English proficiency assessment. Beyond languages, it has expanded into Math, Music, and Chess.
Read filing description ↓ Collapse description ↑
Our mission is to develop the best education in the world and make it universally available. Duolingo is a technology company founded by two engineers, Luis von Ahn and Severin Hacker. Our flagship app has organically become the world's most popular way to learn languages and the top-grossing Education app in the app stores. As of December 31, 2025, Duolingo offers over 250 total language courses to more than 130 million monthly active users. Our products are powered by sophisticated data analytics and AI and delivered with world-class art, animation, and design to make it easier for learners to stay motivated, master new material, and achieve their learning goals. Our millions of learners complete nearly 2 billion exercises every day, creating what we believe to be the world's largest learning dataset. We use a freemium business model that relies on premium subscription offerings, advertising, and in-app purchases to produce revenue. We intentionally do not put our learning content behind a paywall. In 2016, we launched the Duolingo English Test, an online, on-demand assessment of English proficiency accepted by over 6,100 education programs worldwide. While languages remain our core focus, we began expanding into additional subjects aligned with our mission; we now offer courses in Math and Music, and recently launched Chess. We believe rapid advances in Artificial Intelligence will fundamentally change the way people learn, and as a technology company and global education platform, we believe we are well positioned to play a leading role in this innovation.
Primary products
- Duolingo App
- Super Duolingo
- Duolingo Max
- Duolingo English Test
- Duolingo for Schools
- Duolingo ABC
End markets
Geographies
“We believe that our relentless focus on building an engaging and effective learning product, powered by our freemium model, has led to a leading market position, as measured by downloads, active users, and brand awareness.” Competitive position, as stated in the filing
Revenue commentary · FY 2025
Revenue grew from $748.0 million in 2024 to $1.037 billion in 2025, driven by continued expansion of paid subscribers and increased user engagement across the platform.
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