Privacy Policy – Sổ gia phả

Effective: 2026-10-05. This policy applies to the "Sổ gia phả" iOS app, operated by Phong Nguyen Le ("we").

1. Data stored on your device

Family members' names, dates, notes, portrait photos, phone numbers, events, settings and print layouts are stored only on your device. We do not run servers that store your family tree and we cannot read it. Backup, Excel and PDF files are created on your device and you decide where to save or send them.

2. "Create family tree from a photo" – third-party AI

This is the only feature that sends data off your device, and only after you choose a photo and give explicit consent.

• What is sent: the photo you take or select in that screen (and crops of that same photo). Everything visible in it, such as names, dates, text and people's faces, is sent. Data already saved in the app is not sent.
• Who receives it: Google (Gemini API), through a relay server operated for this app on Cloudflare. The relay only forwards the request to Google and does not store your photo.
• Why: solely to read the photo and suggest a list of family members and relationships, which you review before saving. We do not use photos for advertising, sell them, or share them with anyone else.
• Consent: the app asks for your permission before the first upload. You may decline and still use all other features. You can withdraw consent at any time in Settings > Privacy.
• Third-party protection: Google processes the data under its Gemini API terms (ai.google.dev/gemini-api/terms). Cloudflare operates the relay under its own privacy policy.

3. Device permissions

• Camera: only to photograph a family tree when you tap "Take photo".
• Photo library: only photos you select yourself.
• Contacts: only when you pick a contact to fill in a member's phone number.
• Notifications: to remind you of anniversaries and events; scheduled locally on your device.

4. What we do not do

No accounts, no analytics or tracking, no advertising, no third-party SDKs that collect data, and no sale of data.

5. Your rights

Because your family data stays on your device, you can view, change or delete it inside the app, or by deleting the app. For any question or request about data, contact nglephong197@gmail.com.

6. Children

The app is not directed to children and does not knowingly collect data from them.

7. Changes

If this policy changes, we will update the date above.

8. Contact

Phong Nguyen Le – nglephong197@gmail.com