Privacy Policy for Unolingo Last updated: May 27, 2025
- Data We Collect
Reading Behavior: URLs visited, scroll depth, time on page.
Selected Text: Only passages you’ve highlighted or that are automatically sampled once you’ve “read” substantial content.
Performance Metrics: Quiz answers, scores, streaks, XP, grammar-tip interactions.
- How We Use Your Data
Personalization: Adapt quiz difficulty and grammar tips to your reading level, interests, and past mistakes.
Learning Engine: Drive our spaced-repetition scheduler and badge/streak logic.
Feature Operation: Inject overlays and grammar markers only on pages you visit or in text fields you use.
- Data Storage
All user stats (behavior logs, quiz history, error patterns) are stored locally in your browser’s extension storage.
No personal identifiers (name, email, device ID) are collected or stored.
- Data Transmission
To generate AI-powered quizzes, Unolingo sends only the minimal required text snippets and anonymized reading stats to our AI inference endpoint (e.g. Gemini API).
We do not store, log, or share this data beyond the immediate request/response cycle.
- Third-Party Services
AI Inference: Gemini API (or similar) used solely for on-demand quiz generation; no other third-party analytics or tracking services are employed.
Browser Infrastructure: Relies on Chrome’s extension APIs; no external scripts or resources are loaded at runtime.
- Security
Data in transit is encrypted via HTTPS.
Local data is sandboxed within the extension; no external servers persist your history or performance.
- Children’s Privacy
Unolingo is not directed at children under 13. We do not knowingly collect data from users under 13.
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Changes to This Policy We may update this policy to reflect changes in features or legal requirements. We’ll note the “Last updated” date above.
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Contact Us For questions or requests regarding your data, email us at ericduozheng@gmail.com