Duolingo
A popular language learning platform offering gamified lessons in 40+ languages to over 500 million learners worldwide.
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Use Cases (2)
Duolingo, the world’s most downloaded language learning app with headquarters in Pittsburgh, deployed Glean to solve the knowledge fragmentation that came with rapid growth across tools like Google Drive, Slack, Confluence, and Zendesk. After replacing an ineffective internal search tool with Glean’s AI-powered search and Glean Chat, Duolingo teams save 500+ hours every month, generating more than $1.1 million in yearly time savings and a 5x return on investment.
Duolingo, the world’s most popular language learning app with over 500 million users, relies on GitHub Enterprise, GitHub Copilot, and GitHub Codespaces to keep 300 engineers moving fast across a 400-repository microservices codebase. GitHub Copilot delivered a 25% speed increase for developers new to a codebase, Codespaces reduced setup time for the largest repository to under a minute, and custom API integrations cut code review turnaround time by 67%.