Pie Nest Inc. ("Pie Nest", "we", "us", or "our") operates K-Saju: Korean Fortune. This Privacy Policy explains what information we collect, how we use it, and your rights. By using the App, you consent to the practices described here.
| Data | Purpose | Required |
|---|---|---|
| Email address | Account creation and authentication (magic link) | Yes |
| Birth date (year, month, day) | Four Pillars (사주) calculation and fortune readings | Yes |
| Birth hour | More precise Hour Pillar calculation | Optional |
| Gender | 10-year luck cycle (대운) direction | Yes |
| Name | Name Analysis (작명) add-on feature | Optional |
| Face photo | Face Insight feature — AI analysis, auto-deleted within 24 hours | Optional |
We share data only with the following providers, solely to deliver the services described above:
| Provider | Purpose | Data Shared |
|---|---|---|
| Supabase | Database, authentication, and storage infrastructure | Email, birth data, user-generated content |
| Anthropic (Claude API) | AI-powered fortune analysis and interpretation | Birth chart data — no direct personal identifiers |
| RevenueCat | In-app purchase management and subscription entitlements | Device ID, purchase receipts |
| Apple App Store / Google Play | Payment processing for subscriptions and add-ons | Transaction data (governed by platform policies) |
Anthropic's privacy policy: anthropic.com/privacy · RevenueCat: revenuecat.com/privacy · Supabase: supabase.com/privacy
Depending on your location, you may have the following rights:
To exercise any of these rights, contact us at privacy@k-saju.app. We will respond within 30 days.
The App is not directed to children under the age of 13. We do not knowingly collect personal information from children under 13. If you believe we have inadvertently collected such information, please contact privacy@k-saju.app and we will delete it promptly.
The App does not use cookies. We do not use cross-site tracking technologies. Any analytics we collect are aggregated and do not personally identify you.
We implement industry-standard security measures including TLS encryption in transit, Row-Level Security (RLS) policies in our database, and restricted access controls. However, no transmission method or electronic storage system is 100% secure — we cannot guarantee absolute security.
Push notifications (e.g., daily fortune alerts, lucky time reminders) are sent only after you grant explicit permission. You can withdraw this permission at any time through your device's notification settings.
Your data may be processed in countries outside your own, including the Republic of Korea and the United States. Where applicable, transfers comply with relevant data protection laws (e.g., GDPR Standard Contractual Clauses).
We may update this Privacy Policy periodically. We will notify you of significant changes by updating the "Last updated" date above and, where required by law, by obtaining renewed consent. Your continued use of the App after the effective date constitutes acceptance.
For privacy-related questions, data requests, or concerns:
Pie Nest Inc. — Privacy Team
privacy@k-saju.app
General support: support@k-saju.app