Users grant Duolingo a perpetual, irrevocable, worldwide, sublicensable license to use, reproduce, adapt, modify, distribute, publicly display, and create derivative works from any content submitted to the Service. The agreement states this license cannot be terminated by the user after submission.
This analysis describes what Duolingo's agreement states, permits, or reserves. It does not constitute a legal determination about enforceability. Regulatory applicability and practical outcomes may vary by jurisdiction, enforcement context, and individual circumstances. Read our methodology
This provision establishes that the content license granted upon submission is permanent and non-terminable by the user, covering a broad range of permitted uses including creation of derivative works and multi-tier sublicensing. The irrevocable nature of the license persists regardless of account termination or deletion.
The agreement states that once content such as reviews, translations, flashcards, or audio clips is submitted to the Service, the user cannot terminate the license granted to Duolingo. Duolingo retains the right to reproduce, adapt, distribute, and sublicense that content through multiple tiers indefinitely.
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Compare across platforms →"As a condition of submitting any ratings, reviews, information, data, text, photographs, audio clips, audiovisual works, translations, flashcards, or other materials on the Service (collectively, "Content"), you hereby grant to Duolingo a full-paid, royalty free, perpetual, irrevocable, worldwide, nonexclusive, transferable, and sublicensable license to use, reproduce, copy, adapt, modify, merge, distribute, publicly display, and create derivative works from the Content; incorporate the Content into other works; and sublicense through multiple tiers the Content. You acknowledge that this license cannot be terminated by you once your Content is submitted to the Service.Excerpt from Duolingo's Terms of Service
(1) REGULATORY LANDSCAPE: Where submitted content constitutes personal data, GDPR Article 17 right to erasure may create tension with the irrevocable nature of the license asserted in this clause; the document's assertion that the license …
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This provision establishes that the content license granted upon submission is permanent and non-terminable by the user, covering a broad range of permitted uses including creation of derivative works and multi-tier sublicensing. The irrevocable nature of the license persists regardless of account termination or deletion.
The agreement states that once content such as reviews, translations, flashcards, or audio clips is submitted to the Service, the user cannot terminate the license granted to Duolingo. Duolingo retains the right to reproduce, adapt, distribute, and sublicense that content through multiple tiers indefinitely.
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