Legal

Privacy Policy

Last updated: August 30, 2026

Who we are

Castle is a video virality analysis service operated by Yantrava Labs (“Castle”, “we”, “us”). We are based in India and serve users worldwide. This policy explains what we collect, why, and what control you have over it.

What we collect

Account data: your email address and, if you sign in with Google, your name and Google account email. Passwords are handled by our authentication provider and never stored by us in plain text.

Videos you analyze: a URL you paste or a file you upload. Video files are processed transiently: we extract frames and audio, score them, and do not keep the raw video after the analysis completes. We keep the analysis result, extracted metrics, and text embeddings.

Usage data: metered usage, meaning the minutes of video analyzed each month (to enforce plan limits), timestamps, and a random browser identifier used to tell one person retrying from many people trying once. We do not use advertising trackers.

Billing data: handled entirely by Dodo Payments, our merchant of record. We never see or store your card number. We store your subscription tier and status.

How we use it

We use your data to run the analyses you request, enforce plan limits, send account emails such as password resets, and improve scoring quality using aggregate metrics. We do not sell your data. We do not use your videos to train machine learning models.

Processors we rely on

Supabase: authentication and account storage.

Anthropic: video frames and text are sent to Anthropic's API to produce the analysis. Anthropic does not train on this data under their commercial API terms.

Dodo Payments: subscriptions, invoicing, and taxes as merchant of record.

Resend: transactional account email.

Our own servers: analyses and account records are stored on infrastructure we operate.

Cookies

We set cookies only to keep you signed in. There are no third-party advertising or analytics cookies.

Retention and deletion

Analysis results stay in your history until you delete them or your account. To delete your account and all associated data, email support@yantrava.com from your account email; we complete deletion within 30 days and confirm it to you.

Your rights

You can request a copy of your data, correction, or deletion at any time by emailing support@yantrava.com. If you are in a jurisdiction with statutory privacy rights, we honor those rights regardless of where you live.

Changes

If we make material changes to this policy we will update the date above and, for significant changes, notify signed-in users by email.

Questions about this document: support@yantrava.com