Privacy Policy for Calendar Focus Blocker

Last updated: September 28, 2025

1. Information We Collect

Calendar Focus Blocker collects and processes the following information:

• Google Calendar Data: We read your calendar events to detect focus sessions based on keywords you configure
• Website URLs: We monitor which websites you visit to apply blocking rules during focus sessions
• Extension Settings: Your configured blocked websites, focus profiles, and preferences are stored locally
• YouTube Data: When configured, we access your YouTube subscriptions to allow specific creator content during focus sessions

2. How We Use Your Information

Your information is used solely to:

• Detect focus sessions from your calendar events
• Block configured websites during active focus sessions
• Allow exceptions for specified YouTube creators during focus sessions
• Provide manual timer functionality for focus sessions

3. Data Storage and Security

• Local Storage: All your settings and preferences are stored locally on your device using Chrome's storage API
• No Remote Storage: We do not store any of your data on external servers
• Google Services: Calendar and YouTube data is accessed directly from Google's APIs and not stored by our extension
• Encryption: Data transmission to Google services uses HTTPS encryption

4. Data Sharing

We do not share, sell, or transmit your personal data to third parties. Your information remains:

• On your local device only
• Accessible only by you through the extension interface
• Never sent to external servers (except for Google OAuth authentication)

5. Google API Services

This extension uses Google API services for:

• Google Calendar API: Read-only access to detect focus events
• YouTube Data API: Read-only access to your subscriptions for creator exceptions
• OAuth 2.0: Secure authentication managed by Google

Our use of Google APIs adheres to the Google API Services User Data Policy, including the Limited Use requirements.

6. Permissions Explained

• Calendar Access: To read your calendar events and detect focus sessions
• All URLs Access: To block websites you configure during focus sessions
• Tabs Permission: To manage and restore blocked tabs when focus sessions end
• Storage Permission: To save your settings and preferences locally
• Identity Permission: For Google OAuth authentication

7. Data Retention

• Settings and preferences are kept until you uninstall the extension
• Calendar and YouTube data is not stored - it's fetched fresh when needed
• You can clear all data by uninstalling the extension

8. Your Rights

You have the right to:

• Revoke Google Calendar and YouTube access at any time through your Google Account settings
• Delete all extension data by uninstalling the extension
• View and modify all stored settings through the extension's options page

9. Children's Privacy

This extension is not intended for children under 13. We do not knowingly collect personal information from children under 13.

10. Changes to This Policy

We may update this privacy policy from time to time. Any changes will be reflected in the "Last updated" date above. Continued use of the extension after changes constitutes acceptance of the updated policy.

11. Contact Information

If you have questions about this privacy policy, please contact us through the Chrome Web Store support page for Calendar Focus Blocker.

12. Compliance

This extension complies with:

• Chrome Web Store Developer Program Policies
• Google API Services User Data Policy
• General Data Protection Regulation (GDPR) principles