Privacy Policy - YController Chrome Extension

Last Updated: January 25, 2026

1. Information We Collect

1.1 Local Storage Data

We collect and store the following data locally on your device using Chrome Storage API and IndexedDB:

• User Configurations: Website selector configurations, interface settings, and user preferences
• Chat Records: Conversation content, titles, tags, topics, and metadata from AI chat platforms
• Organizational Data: Topics, tags, workspaces, and prompt library entries
• Extension Settings: User preferences and customization options

Storage Location: All data is stored exclusively on your local device. We do not upload this data to any external server.

1.2 Anonymous Analytics Data

When you use certain features, we may collect anonymous analytics data to improve the extension:

AI Cross-Review Feature Data

When you use the "Cross-Review" feature (一键互评), we collect the following anonymous data:

• User Questions: The questions you ask to AI models
• AI Responses: Responses from different AI models
• Review Results: Cross-review evaluations between AI models
• Summary Results: Final summary conclusions from the review process
• Metadata: Number of AIs used, success status, duration, and feature usage statistics

Purpose: This data is collected to:

• Analyze AI model performance and quality differences
• Improve the cross-review algorithm
• Understand feature usage patterns
• Enhance product functionality

Data Transmission: This data is sent anonymously to our analytics service hosted on Cloudflare Workers. The data is:

• Associated with an anonymous user ID (stored locally, not linked to your identity)
• Associated with a session ID (temporary, for the current session)
• Transmitted using encrypted HTTPS connections
• Stored in a Cloudflare D1 database for analysis

Other Analytics Data

We may also collect:

• Feature usage statistics (which features you use)
• Error reports (to help us fix bugs)
• "Ask Other AI" feature usage data

2. How We Use Your Information

2.1 Local Data Usage

• Core Functionality: Save and manage your chat records, remember your configurations
• User Experience: Provide search, filtering, and organization features
• Feature Support: Enable navigation, multi-AI parallel chat, and workspace management

2.2 Analytics Data Usage

• Product Improvement: Understand how features are used to improve the extension
• Quality Analysis: Analyze AI model performance differences
• Bug Fixes: Identify and resolve technical issues
• Feature Development: Guide future feature development based on usage patterns

3. Data Sharing and Disclosure

3.1 No Third-Party Sharing

We do not sell, trade, or share your personal information or local data with third parties.

3.2 Analytics Data

Anonymous analytics data is:

• Sent to our Cloudflare Workers analytics service
• Stored in Cloudflare D1 database
• Used only for internal analysis and product improvement
• Not shared with third parties for commercial purposes

3.3 Legal Requirements

We may disclose information if required by law or to protect our rights and safety.

4. Data Security

• Local Data: All local data is stored securely on your device using Chrome's built-in storage APIs
• Transmission: Analytics data is transmitted using encrypted HTTPS connections
• Storage: Analytics data is stored in Cloudflare D1 database with appropriate security measures
• No Personal Information: We do not collect personally identifiable information (PII)

5. Your Rights and Choices

5.1 Local Data Control

• Export: You can export all your local data at any time through the extension's settings
• Delete: You can delete all your local data at any time through the extension's settings
• Disable Features: You can disable specific features that collect data

5.2 Analytics Data

• Anonymous Nature: Analytics data is collected anonymously and cannot be linked to your identity
• Data Retention: Analytics data is retained for product improvement purposes

5.3 Cloud Synchronization (Optional)

If you choose to enable cloud synchronization:

• Data is synchronized through user-authorized services
• You can disable cloud synchronization at any time
• Cloud synchronization uses encrypted transmission

6. Children's Privacy

Our extension is not intended for children under 13 years of age. We do not knowingly collect information from children.

7. Changes to This Privacy Policy

We may update this Privacy Policy from time to time. We will notify you of any changes by updating the "Last Updated" date at the top of this policy.

9. Compliance

This Privacy Policy complies with:

• Chrome Web Store Developer Program Policies
• General Data Protection Regulation (GDPR) principles
• California Consumer Privacy Act (CCPA) principles

© 2026 YController. All rights reserved.