Duolingo, Inc. Revenue & Financials

Duolingo's revenue grew 41 percent year-over-year in FY2024, reaching $747.6 million from $531.6 million in FY2023. The compound annual growth rate since FY2022 ($388 million) is approximately 39 percent — a rare sustained growth rate at a company approaching $1 billion in revenue with genuine profitability. Net income of $134.6 million in FY2024 marks the transition to sustained profitability after years of operating losses. The 83 percent gross margin reflects the scalability of software-delivered education — serving an additional million users requires minimal incremental cost once the platform infrastructure is in place. The marginal cost of a Duolingo lesson delivered to user number 50 million is essentially zero. Stock-based compensation of $185.4 million — representing nearly 25 percent of total revenue — is the mechanism by which Duolingo retains engineers who could earn comparable base salary at FAANG companies. The SBC inflates reported compensation expense and reduces GAAP earnings below the underlying cash generation. Free cash flow of $170.4 million in FY2024 is the more honest measure of what the business generates for shareholders. The $13.5 billion market capitalization at roughly 18x trailing revenue implies the market expects sustained high growth. The supporting evidence: 41 percent revenue growth in FY2024, 34 percent subscriber growth to 9.36 million paid users, and the Duolingo Max tier demonstrating that users will pay premium prices for AI-enhanced learning features. The risk: 9.36 million paid subscribers against 700 million-plus registered users who never converted to paying suggests that monetization of the free user base faces genuine structural limits.