Privacy Policy — Lek Dee (เลขดี)

Last updated: September 22, 2026 · Provider: SI Construction Co., Ltd. (Republic of Korea) · Contact: siworks@siworks.asia

What the app does

Lek Dee is a Thai dream-interpretation app for entertainment and cultural purposes. It provides daily lucky numbers, auspicious colors and short advice. It does not sell lottery tickets, does not facilitate gambling, and does not guarantee any outcome.

Data we collect

• Dream text, mood, tags you enter: processed on your device, sent to our server (Vercel) and to our AI provider (Anthropic, USA) to generate the interpretation. We do not store dream text on our servers.
• Voice (when you use the microphone): transcribed by the Android system speech service (Google). We do not record or store audio.
• Dream diary, date of birth, numbers you keep, settings: stored on your device; if you sign in with Google, backed up to Firebase Firestore (Google, asia-southeast1) under your account only. Your date of birth is never sent to our fortune server — the lucky colour, Rasi sign, zodiac year and personal number are all worked out on your device.
• Google account (email, name, photo) only if you choose to sign in, via Firebase Authentication.
• A random device identifier (non-identifying) to enforce the free daily limit; kept on our server for at most 36 hours.
• Anonymous usage analytics via Firebase Analytics, and advertising data via Google AdMob in the free version.
• Purchases are handled by the App Store or Google Play, and RevenueCat; we never see your payment details.

International transfer

Dream text is processed by our AI provider in the United States and backups are stored with Google (Firebase). By using the app you acknowledge this transfer under Thailand's Personal Data Protection Act B.E. 2562 (PDPA).

Your rights and data deletion

• In the app: Settings → "Delete account & all data" removes local data, your account and cloud data immediately.
• By email: write from the Google account you used to siworks@siworks.asia with subject "Delete my Lek Dee data". We process requests within 30 days.

Children

The app is not directed to persons under 18 and does not knowingly collect data from children.