Privacy Policy

1. What we collect & why

SajuDuo collects birth date, birth time, and gender solely to calculate compatibility and generate the AI reading. The data is used only for producing your result and deleted without delay once no longer needed (share links expire and are removed after up to 30 days). We also store an anonymous visitor identifier in your browser so visits can be counted without duplication. It does not identify you personally and is used only for aggregate usage statistics.

2. Processors

Your data is processed by the following providers to run the service:

• Anthropic (US) — AI reading generation / at request time / retention per Anthropic's policy
• Supabase (data stored in India) — result & link storage / within the retention period
• Vercel (US) — web hosting / at access time / per their log policy
• Kakao (Korea) — advertising via Kakao AdFit / uses cookies to serve ads
• Google (US) — usage statistics via Google Analytics / at access time / uses cookies

3. Advertising & cookies

We show ads through Kakao AdFit, Kakao's advertising platform, to support the service. Kakao may collect and use cookies or similar browser identifiers and visit information to serve ads and measure their performance, as described in Kakao's privacy policy. You can limit personalized ads by blocking or deleting cookies in your browser settings.

4. Your rights & deletion

You may request access, correction, deletion, or processing suspension. When the retention period ends or the purpose is fulfilled, data is destroyed irrecoverably.

5. Contact

Operator · ootssu@ootssu.com — inquiries and rights requests.