Privacy Policy

Last updated: February 19, 2026

Introduction

MissSub ("we", "our", or "us") is committed to protecting your privacy. This Privacy Policy explains how we collect, use, and safeguard your information when you use our Chrome extension and web application (collectively, the "Service").

Information We Collect

Account Information

When you sign in with Google, we collect your name, email address, and profile picture from your Google account. This information is used solely for authentication and displaying your account in the Service.

Video Data

When you use the extension to generate subtitles, we collect the video stream URL (m3u8) from the current page. The audio is temporarily processed on our servers for speech recognition and translation, then automatically deleted after processing is complete. We do not store or retain any video or audio content after task completion.

Usage Data

We store your subtitle task history (task status, language settings, and video page URLs) to allow you to manage and revisit your tasks. This data is associated with your account.

Preferences

We store your language preferences and extension settings locally in your browser using Chrome's storage API. This data never leaves your device.

How We Use Your Information

To authenticate your identity and manage your account
To process video audio for speech recognition and translation
To display your subtitle task history and status
To save your language and extension preferences locally

We do not use your data for advertising, profiling, or any purpose unrelated to providing the Service.

Data Sharing

We do not sell, trade, or transfer your personal information to third parties. Your data is only used to provide the subtitle generation service. Video audio data is processed through our secure servers and deleted after task completion.

Data Security

We use industry-standard security measures to protect your data during transmission and storage. All API communications are encrypted via HTTPS. Authentication tokens are stored securely in your browser.

Data Retention

Account information is retained as long as you maintain an account with us.
Video audio files are automatically deleted after subtitle processing is complete.
Task history is retained for your convenience and can be managed through the Service.
Local preferences are stored on your device and can be cleared through browser settings.

Your Rights

You have the right to:

Request access to the personal data we hold about you
Request deletion of your account and all associated data
Clear your local extension data through your browser settings
Withdraw consent for data processing at any time by deleting your account

To exercise any of these rights, please contact us at the email address below.

Third-Party Services

We use Google OAuth for authentication. Your use of Google sign-in is subject to Google's Privacy Policy. We use AI-powered speech recognition and translation services to process video audio — no personal data beyond the audio content is shared with these services.

Children's Privacy

The Service is not intended for use by children under the age of 13. We do not knowingly collect personal information from children under 13. If we become aware that we have collected such information, we will take steps to delete it promptly.

Changes to This Policy

We may update this Privacy Policy from time to time. Changes will be posted on this page with an updated revision date. We encourage you to review this policy periodically.

Contact Us

If you have any questions about this Privacy Policy or wish to exercise your data rights, please contact us at [email protected].