English · 한국어
Effective date: September 3, 2026
Saju Lab ("the App", "we", "us") is a Korean fortune app offering Saju (Four Pillars) reading, daily fortune, compatibility, face reading, and a personality test — all for entertainment and self-reflection. This Privacy Policy explains what information is involved when you use the App.
We do not operate our own servers and the App does not require an account or login. All readings are computed entirely on your device, and your data is never transmitted to us.
We (the developer) do not collect or receive any personal information from you. The App has no backend and no sign-in, and does not transmit your birth information, photos, or results to us or to any third party (except the ad data described in Section 4, which is processed by Google).
Data you enter is stored locally on your device only:
You can delete profiles in the App at any time, and erase everything by clearing the App's storage or uninstalling the App.
The face reading feature uses your camera or a photo you pick, only when you choose to use it. Face analysis runs entirely on your device (on-device machine-learning model).
Birth date, time, and gender are used solely to compute your Saju chart on-device using traditional calendar data bundled with the App. This information is stored only in the App's local database and is never transmitted anywhere.
The free version of the App shows ads using Google AdMob. AdMob is provided by Google and may collect and process information to serve and measure ads, including:
This data is collected by Google, not by us. Please review Google's policies:
Watching an optional rewarded ad unlocks the detailed readings for that day. The App has no paid tier or subscription, and does not sell ad removal.
Where required, the App uses Google's User Messaging Platform (UMP) to ask for your consent before serving personalized ads, in line with GDPR. You can change or withdraw your choice later from the App's settings.
Depending on your state, you may have the right to opt out of the "sale" or "sharing" of personal information for targeted advertising. Where a consent/opt-out form is presented, your choice is applied to ad personalization.
The App has no in-app purchases. Every feature is free; the readings that cost us money to serve are unlocked by watching a rewarded ad. The App therefore never requests, transmits or stores payment details.
You can share a result card image via the Android share sheet. The image is generated on your device and handed to the app you choose; the App itself does not upload or keep shared images.
Permissions are used only for the features above and are not used to collect personal data.
The App is not directed to children under 13 (or the equivalent minimum age in your country). We do not knowingly collect personal information from children.
Because we have no servers, we do not store your data. All app data lives on your device and is removed when you delete profiles, clear the App's data, or uninstall the App. Information processed by Google for ads is handled under Google's policies.
Depending on your region (e.g., GDPR in the EEA/UK, CCPA/CPRA in the US), you may have rights to access, delete, or restrict processing of personal data, and to opt out of personalized ads. Because the developer holds no personal data, such requests primarily concern Google's ad data — see Google's policies above. You may also contact us using the details below.
All readings in the App — Saju, daily fortune, compatibility, face reading, and the personality test — are for entertainment and self-reflection only. They are not definitive predictions and must not be used as medical, financial, legal, or professional advice.
We may update this Privacy Policy. Material changes will be reflected by updating the "Effective date" above and, where appropriate, within the App or store listing.
If you have any questions about this Privacy Policy, contact: