Privacy Policy

1. Information We Collect

• Account information (email, username)
• Learning data (flashcard progress, quiz results)
• Saju (fortune) data: birth date, birth time, gender — 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

• Access, correct, or delete your data at any time via account settings
• Contact: privacy@k-learning.app

5. Saju Data Special Notice

Birth date and time constitute sensitive personal information under PIPA (개인정보보호법). 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 — only a reference indicating that a supporter chose to contribute. See Buy Me a Coffee's privacy policy at buymeacoffee.com/privacy-policy.