Duolingo Inc (NASDAQ: DUOL) is a consumer education technology company that operates a mobile-first language learning platform. Revenue comes primarily from paid subscriptions (Duolingo Super and Max tiers), with supplemental income from in-app advertising shown to free-tier users and in-app purchases of virtual currency. The free tier drives user acquisition at scale, converting a portion of the base into paying subscribers. As of the 10-K filed February 27, 2026 (accession 000162828026012494), the filing confirms Duolingo operates its platform globally across multiple languages and subject areas. The company was founded by Luis von Ahn and Severin Hacker and is headquartered in Pittsburgh, Pennsylvania. The freemium structure creates a large advertising-supported audience alongside a recurring subscription revenue base, with subscription revenue representing the dominant and faster-growing portion of total revenue. The filing does not disclose segment-level revenue percentages or specific subscriber counts in the excerpts provided.

Revenue model

Freemium subscription model: free ad-supported tier converts users to paid Duolingo Super and Max subscriptions; secondary revenue from in-app advertising and virtual currency purchases.

Products and services

Duolingo language learning app; Duolingo Super subscription; Duolingo Max subscription; in-app advertising; virtual currency (Gems/Lingots); mobile and web platform.

Customers and end markets

Individual consumer learners globally; free-tier ad-supported users; paying subscribers seeking ad-free and enhanced learning features; end market is consumer self-directed language and skills education.

Value-chain role

Direct-to-consumer platform provider; content creator and curriculum developer; mobile app publisher; advertising inventory seller to brand advertisers.

Geographic exposure

Global platform with users across multiple countries; headquartered in Pittsburgh, Pennsylvania, USA; specific geographic revenue breakdown not supported by provided filing excerpts.

Source: SEC 10-K, filed 2026-02-27

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