Cerolingo is committed to maintaining complete user privacy. The extension functions strictly as a client-side utility. It does not collect, intercept, track, or transmit any personal data, account credentials, browsing histories, or telemetry metrics to external servers.
The extension uses local storage privileges (chrome.storage.local) solely to save your preferences and configuration states (such as active module toggles and menu positions) directly on your device. Cerolingo does not sync data to cloud servers or browser sync profiles. All DOM manipulations, main-world script injections, and automation tasks execute entirely within your web browser environment.
Cerolingo interacts directly and exclusively with official Duolingo domains (duolingo.com and duolingo.cn) to process lesson automation. The extension contains zero integrations with third-party analytics services, tracking scripts, advertising networks, or remote telemetry servers.
In accordance with browser web store policies and global privacy standards, Cerolingo explicitly guarantees:
This Privacy Policy may be updated periodically to reflect minor technical or functional adjustments. Any modifications will be posted directly to this page. Continued use of the extension following any updates constitutes acceptance of the revised policy.