Duolingo Terms of Service

This document governs use of Duolingo's language learning platform, applications, and related services, establishing a binding legal agreement between Duolingo Inc. and users upon account creation or continued use of the service. The agreement states that users grant Duolingo a broad, worldwide, royalty-free, sublicensable, and transferable license to use, reproduce, modify, distribute, and display any content they submit, and the terms authorize Duolingo to suspend or terminate accounts at its sole discretion for violations of community guidelines or other policies. The arbitration clause and class action waiver are notable: the terms require individual binding arbitration for most disputes (with a 30-day opt-out window from first account creation), which, while common in U.S. consumer platforms, limits users' ability to pursue collective legal action; additionally, the content license granted over user-submitted material is broader than a typical read-only platform would require, though its practical scope depends on what content users actually submit. The agreement engages COPPA and FERPA given Duolingo's significant minor and student user base, GDPR and UK GDPR for European users, and CCPA for California residents; compliance obligations under these frameworks may constrain how broadly the asserted data and content rights apply in practice, particularly for users under 13 and in EU/EEA jurisdictions where consent and data minimization requirements impose additional obligations.