📚 Libris

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This Privacy Policy describes how Libris ("we", "us", or "our") collects, uses, and shares information when you use our mobile application ("App"). We are committed to protecting your privacy and ensuring transparency about our data practices.

1. Information We Collect

1.1 Information You Provide

• Google Account Information: When you sign in with Google, we receive your email address and basic profile information (name, profile picture) to enable cloud synchronization.
• Reading Content: E-books, PDFs, and documents you add to the app are stored locally on your device and optionally in your personal Google Drive.
• User Preferences: Reading settings, bookmarks, highlights, annotations, and notes you create.

1.2 Automatically Collected Information

• Reading Statistics: Pages read, reading time, and session data for your personal statistics dashboard (stored locally).
• App Analytics: Screen views and feature usage to improve app experience (stored locally).
• Device Information: Device model, operating system version, and app version for troubleshooting purposes.

1.3 Third-Party Data Collection

2. How We Use Your Information

Purpose	Data Used
Cloud Synchronization	Google account, reading progress, bookmarks, highlights
Reading Statistics	Pages read, time spent, sessions (local only)
Text-to-Speech	Book content (processed on-device)
Translation	Selected text (processed on-device via ML Kit)
Advertising	Device identifiers (via Google AdMob)

3. Data Storage and Security

3.1 Local Storage

The majority of your data is stored locally on your device using encrypted SQLite databases. This includes:

• Your e-book library and reading content
• Bookmarks, highlights, and annotations
• Reading statistics and preferences
• App settings and configurations

3.2 Cloud Storage (Optional)

If you enable cloud synchronization:

• Your data is stored in your personal Google Drive account
• Data is encrypted using AES-256 encryption before upload
• We do not have access to your Google Drive; you maintain full control
• You can delete synced data at any time through Google Drive

3.3 On-Device Processing

We use Google ML Kit for translation and language detection. All ML processing happens entirely on your device - no text is sent to external servers.

3.4 Data Transmission Security

All data transmitted to third-party services (including Google services and ad networks) is encrypted using secure HTTPS connections. We use industry-standard encryption protocols to protect your data during transmission.

4. Third-Party Services

a, pproximate location

Service	Purpose	Data Shared
Google Sign-In	Authentication	Email, profile info
Google Drive API	Cloud backup	Encrypted ap (with Mediation)p data (to your Drive)
Google AdMob	Advertising	Device ID, usage data
Google ML Kit	Translation (on-device)	None (local processing)

5. Data Sharing

We do not sell, trade, or rent your personal information. We only share data in the following circumstances:

• With Your Consent: When you explicitly authorize sharing
• Service Providers: Google services as described above
• Legal Requirements: When required by law or to protect rights

6. Your Rights and Choices

• Access: View all your data within the app
• Delete: Remove your local data by clearing app data or uninstalling
• Cloud Data: Delete synced data from your Google Drive
• Opt-out of Personalized Ads: Adjust in your device's Google settings
• Sign Out: Disconnect Google account at any time

7. Children's Privacy

Libris is not directed at children under 13. We do not knowingly collect personal information from children. If you believe a child has provided us with personal information, please contact us.

8. Changes to This Policy

We may update this Privacy Policy from time to time. We will notify you of any changes by posting the new Privacy Policy on this page and updating the "Last Updated" date.