Privacy Policy

Last updated: July 14, 2026

Mandarin Lens ("we", "our", or "us") is a Chrome extension that generates Mandarin audio and subtitles for YouTube videos. This policy explains what data we collect and how we use it.

What we collect

Account information
When you sign in with Google, we receive your email address and a unique user ID from Google. We use this solely to manage your account and enforce usage limits.

Usage data
We log when you use the translation and text-to-speech features (action type and timestamp). We use this to enforce the free tier limit.

What we do not collect

How your data is used

Third-party services

To provide our service, your data passes through:

Data retention

Usage logs are retained for 90 days. You can request deletion of your account and associated data at any time by emailing hello.mandarinlens@gmail.com.

Children's privacy

Mandarin Lens is not directed at children under 13. We do not knowingly collect data from children under 13.

Changes to this policy

We may update this policy as the product evolves. We will update the "Last updated" date at the top when we do.

Contact

hello.mandarinlens@gmail.com