Duolingo records your voice when you use speaking exercises and uses those recordings to assess your pronunciation and improve its technology.
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
The clause establishes the scope and stated purpose of voice data collection, which is a material data practice given that voice recordings constitute sensitive audio data. This provision defines the operational basis for voice capture and processing within the service.
The updated policy removes explicit language stating that Android users and website users are not subject to audio collection for product improvement purposes. Previously, the policy authorized audio collection only from iOS users, with an explicit carve-out for Android and web users. The revised language now states that all users may choose not to share audio within app Settings, suggesting audio collection may now occur across all platforms unless the opt-out mechanism is used. The practical operational effect of this change depends on whether Duolingo implements audio collection on Android and web platforms, which the policy change does not explicitly confirm. You can decline audio sharing for product improvement by adjusting the setting within the app.
View change record →Removal of explicit disclosure about voice data collection is significant as it previously provided clear notice about a sensitive form of biometric data collection used for speech recognition.
View full change record →Your voice recordings are collected during speaking exercises and may be used beyond immediate pronunciation feedback, including to train Duolingo's speech recognition systems, which raises questions about retention and secondary use of biometric-adjacent data.
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NIM container releases that collect data, collect it for the following purposes: (a) to properly configure and optimize products for use with Software; and (b) to improve NVIDIA products and services.
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"We collect voice recordings when you use voice-based features in our app, such as speaking exercises. We use these recordings to evaluate your pronunciation and improve our speech recognition technology.Excerpt from Duolingo's Privacy Policy
REGULATORY FRAMEWORK: Voice data collection implicates GDPR Art.
Enforcement risk, jurisdiction flags, contract triggers, and due diligence action items.
Netflix updated its Privacy Statement on April 18, 2026, disclosing voice recording collection and expanded household ad profiling for the first time.
Google's Privacy Policy covers Search, Gmail, YouTube, Maps, and every site running Google Analytics. Here is what it actually authorizes.
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The clause establishes the scope and stated purpose of voice data collection, which is a material data practice given that voice recordings constitute sensitive audio data. This provision defines the operational basis for voice capture and processing within the service.
Your voice recordings are collected during speaking exercises and may be used beyond immediate pronunciation feedback, including to train Duolingo's speech recognition systems, which raises questions about retention and secondary use of biometric-adjacent data.
ConductAtlas has identified this type of provision across 295 platforms. See the full comparison.
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