Legal

Privacy Policy

Last updated: April 2026

1. Information We Collect

  • Account information (email, username)
  • Learning data (flashcard progress, quiz results)
  • Saju (fortune) data: birth date, birth time, gender β€” collected only with explicit consent

2. How We Use Your Information

  • To provide personalized learning experiences
  • To calculate Saju fortune readings (birth data used only for computation)
  • We do not sell your personal information to third parties

3. Data Retention

  • Saju profile data: retained until account deletion or explicit request
  • Learning progress: retained for service continuity

4. Your Rights

5. Saju Data Special Notice

Birth date and time constitute sensitive personal information under PIPA (κ°œμΈμ •λ³΄λ³΄ν˜Έλ²•). We collect this information only with your explicit consent and use it solely for fortune reading purposes.

6. Payment Information

Premium support is processed externally by Buy Me a Coffee. We do not receive or store card numbers β€” only a reference indicating that a supporter chose to contribute. See Buy Me a Coffee's privacy policy at buymeacoffee.com/privacy-policy.