Privacy Policy

Effective Date: January 25, 2026

1. Introduction

LanguageShadow ("we," "our," or "us") respects your privacy. This Privacy Policy describes how we collect, use, and protect your information when you use our browser extension (the "Service").

By using the Service, you agree to the collection and use of information in accordance with this policy.

2. Information We Collect

A. Non-Personal Usage Data

We collect anonymous usage data to help us improve the Service. This includes:

• Anonymous User ID: A randomly generated unique identifier stored locally on your device to count unique users.
• Usage Events: Basic interactions such as "App Install," "App Open," and "Practice Session Started."
• Performance Data: Error logs and performance metrics (e.g., if a feature fails to load).

B. Personal Data

We do not collect your name, email address, phone number, or any other personally identifiable information (PII) unless you voluntarily provide it to us (e.g., via a feedback form).

C. Chrome Storage

The Service uses your browser's local storage (`chrome.storage`) to save your preferences, such as:

• Your target and native languages.
• Your practice history and settings.

This data is stored locally on your device and is not synchronized to our servers unless you enable Chrome Sync, in which case it is handled by Google's privacy policy.

3. How We Use Your Information

We use the collected information for the following purposes:

• To provide and maintain the Service.
• To detect and address technical issues.
• To understand how users interact with the Service to improve features.

4. Data Sharing and Disclosure

We do not sell, trade, or rent your personal identification information to others. We may share generic aggregated demographic information not linked to any personal identification information with our business partners and trusted affiliates.

5. Third-Party Services

We use the following third-party services:

• YouTube: The Service interacts with YouTube to display subtitles. By using the Service, you also agree to be bound by the YouTube Terms of Service and Google Privacy Policy.
• Azure Functions: We use Azure Functions to process anonymous usage pings.

6. Security

We value your trust in providing us your information, thus we are striving to use commercially acceptable means of protecting it. But remember that no method of transmission over the internet, or method of electronic storage is 100% secure and reliable, and we cannot guarantee its absolute security.

7. Changes to This Privacy Policy

We may update our Privacy Policy from time to time. We will notify you of any changes by posting the new Privacy Policy on this page.

8. Contact Us

If you have any questions or suggestions about our Privacy Policy, do not hesitate to contact us at support@languageshadow.com.