Privacy Policy

1. What we collect

When you sign in for the stamp service (Kakao/Google): account identifier and nickname (required); profile photo and email only if you consent (optional).

Generated during use: stamp timestamps, reward history, hashed device/IP values for fraud prevention (originals are never stored), and survey responses.

Anonymous, cookie-based visit statistics may be collected.

2. Why we collect it

Identifying stamp members, managing stamps & rewards, preventing fraud, improving service via surveys, and anonymous analytics. Nothing else.

3. Retention & deletion

Upon account deletion, your stamps, coupons and account data are erased without delay. Survey responses are anonymized and kept only as statistics.

4. Sharing & processing

We do not share personal data with third parties (except as required by law). Data is stored in an encrypted cloud database (Supabase).

5. Your rights

You may request access, correction, or deletion at any time — in store or by phone.

6. Contact

Mugunghwa Banjum Gangnam · Owner Seo Green · 0507-1445-5229

Effective 2026-08-27.