Core Insights - Duolingo, the world's largest digital language education platform, has experienced significant growth due to its integration of AI features, leading to a doubling of its stock price over the past year [2][9]. Company Performance - Duolingo reported over 128 million monthly active users in Q2 2025, a 24% increase year-over-year, with 10.9 million subscribers, marking a 37% growth [4]. - The company generated a record revenue of $252.3 million in Q2, a 41% increase from the previous year, surpassing management's forecast [7]. - Duolingo's net income reached $44.8 million in Q2, an 84% increase year-over-year, showcasing consistent profitability [9]. AI Integration - The platform's subscription tier, Duolingo Max, includes advanced AI features such as personalized feedback and chatbot-style roleplay, contributing to user engagement [5][6]. - Max subscribers accounted for 8% of total paying members in Q2, up from 7% in the previous quarter, indicating growing adoption of AI features [6]. Future Outlook - Management has raised the full-year revenue forecast for 2025 to over $1 billion, marking a significant milestone for the company [8]. - The stock is currently trading at a price-to-sales ratio of 20, which is a 22% premium to its long-term average [10]. - Based on future earnings potential, the forward P/E ratio is projected at 55.7 for 2025 and 44.4 for 2026, suggesting that while the stock is not cheap, it may still offer long-term investment potential [12][13][15].

Core Insights - Duolingo is intensifying its promotion of premium subscription plans, particularly the Duolingo Max plan, which has raised concerns among some users about the aggressive marketing approach [1][5][9] - The company has a significant user base of 128 million monthly active users, but only 11 million are paid subscribers, indicating a potential for growth in subscription revenue [7][9] - Duolingo's revenue model heavily relies on subscriptions, which accounted for 85% of its revenue-generating order bookings in Q2 2025, with a 6% year-over-year increase in average revenue per user (ARPU) [7][8] User Experience Changes - The mobile app has evolved to provide distinct experiences across platforms, with new features often rolled out first on iOS before reaching Android users [2] - Recent updates to the Android app have made the Practice Hub less accessible, as it has been moved to a less prominent location, potentially discouraging users from utilizing this resource [3][5] - The introduction of the Video Call feature, which is exclusive to the Duolingo Max plan, reflects the company's strategy to push higher-tier subscriptions [5][6] Business Strategy - Duolingo's focus on the Max subscription is seen as a strategic move to enhance profitability, despite concerns that it may alienate some loyal users [8][9] - The company operates on a data-driven model, suggesting that any negative impact on user retention from aggressive marketing will be quickly addressed if necessary [10][11] - Overall, the push towards the Max plan is viewed as a disciplined growth strategy rather than a desperate attempt to increase revenue, indicating a positive outlook for the company's future [12]

Financial Data and Key Metrics Changes - In Q4 2024, total bookings grew by 42% year-over-year, while revenue increased by 39% year-over-year [18][19] - The adjusted EBITDA margin expanded by about 8 percentage points for the full year, reaching 25.7% in 2024 [7][19] - The company expects bookings to grow by 25% year-over-year in 2025, with subscription bookings projected to grow around 31% [20][21] Business Line Data and Key Metrics Changes - Duolingo Max subscriptions contributed significantly to Q4 performance, with Max now representing about 5% of total subscribers [10][19] - The Family Plan accounted for 23% of total subscribers, showing higher retention and lifetime value compared to individual plans [11] - Daily active users (DAUs) reached 40 million, growing 51% year-over-year [9][51] Market Data and Key Metrics Changes - The growth rate of DAUs was broad-based across regions, with Latin America growing at approximately 80% year-over-year [52][53] - The company noted that growth in mature markets is not correlated with saturation, indicating ongoing opportunities for expansion [52][128] Company Strategy and Development Direction - The company aims to drive subscription bookings by increasing user growth, improving subscriber conversion, and promoting Duolingo Max [12] - Generative AI will be leveraged to enhance the Video Call experience and scale content across language, math, and music courses [13][14] - The focus remains on balancing top-line growth with long-term profitability targets, with a more moderate pace of profit growth expected compared to previous years [17][24] Management's Comments on Operating Environment and Future Outlook - Management expressed confidence in the momentum going into 2025, driven by strong adoption of Duolingo Max and the Family Plan [19] - The company anticipates a temporary impact on gross margin due to AI costs associated with Max, but expects margins to improve in the second half of 2025 [23][24] - Management highlighted the importance of ongoing marketing efforts and user engagement strategies to sustain growth [88][130] Other Important Information - The company ended 2024 with a fully diluted share count of 49.5 million and expects dilution of around 1% in 2025 [29] - Duolingo's mascot, Duo, returned after a marketing campaign that engaged users globally, reflecting the company's innovative approach to user engagement [30] Q&A Session Summary Question: Can you help us understand which cohorts are exhibiting the strongest growth by language or geo? - Management noted that Japan has a higher share of Max subscribers than Super subscribers, with strong adoption from both new subscribers and upgrades from existing Super subscribers [34][35] Question: Should we think about the AI investments this year as mainly Duo Max and Voice Calls? - Management clarified that AI investments are focused on automating internal processes and enhancing features like Video Call, with a significant increase in content generation capabilities [40][41] Question: Can you give us a sense of DAU growth and how international markets are performing? - Management reported 51% year-over-year DAU growth, with all regions experiencing growth, particularly Latin America [51][52] Question: How do you see user growth coming from next? - Management indicated that Asia represents a significant opportunity for growth, with ongoing marketing efforts to penetrate less developed markets [128][130] Question: How did Max perform during the promotional period? - Management stated that Max and the Family Plan both outperformed expectations during the promotional period, contributing to strong user growth [136] Question: What is the expected impact of AI costs on gross margins? - Management expects a temporary impact on gross margins due to AI costs but anticipates improvements as efficiencies are realized [23][55]