Privacy Policy

In order to provide you with the best language learning experience and subscription management, we may collect the following information:

• Account & Transaction Information: When you sign in using Google or subscribe through Paddle, we collect your email address, transaction IDs, and billing status. Your full credit card details are securely stored by Paddle; we do not access or retain them.
• AI Parsing Requests: When you click on subtitles for AI analysis, the text segment is sent to our backend and processed by trusted third-party AI APIs. We only save the parsed results as a global shared cache and **never** associate or record your personal video viewing history.
• Local Browser Storage: Your preferences (such as font size, language settings, etc.) are strictly kept inside your browser's local Chrome Storage and are not uploaded.

The collected data is used solely to:

• Authenticate and verify your account credentials (checking Pro membership status).
• Process and manage your billing transactions.
• Provide and optimize the AI parsing and language learning features.

We implement industry-standard security measures (including SSL/HTTPS transmission encryption and local JWT HS256 signature verification) to safeguard your credentials and API communications.

To maintain our services, we collaborate with the following trusted third-party providers:

• Paddle: Our Merchant of Record, responsible for checkout secure processing, billing, and tax compliance.
• Third-Party AI & Natural Language Processing Providers: Used for subtitle parsing, semantic analysis, and translation processing.

You can log out or request deletion of your account at any time. If you wish to query, modify, or delete your billing transaction data, please contact us via email.