Fengshui Master (fengshuiMaster) privacy

Applies to the Fengshui Master mobile app for iOS and Android (repository name fengshuiMaster, bundle id com.fengshuimaster.app) and the API it talks to at fengshui-api.llab08.com. “Privacy policy” in the app’s Profile screen opens this section.

This service is operated by llab08, Hong Kong, and these terms are governed by the laws of Hong Kong. The section below explains this product’s data handling and current availability.

Summary

The app computes Bazi (Four Pillars) charts, name (five-grid) analyses, home fengshui audits, I-Ching readings and Qimen time windows from rules in traditional texts. To do that it sends the details you type — a name, a birth date and hour, a time zone and, optionally, coordinates or a home’s facing direction — to our server, which returns the result. These are personal data. There is no advertising, no analytics and no tracking library in the app.

What we process and where

Calculations run on a server we operate (the API above). Without an account, the details you enter are used for that request only and are not written to our database. With an account, your email address, a password hash, your language and time-zone preferences and the PDF reports you generate are stored with the account in our database and file store; the chart data used for a report is kept only inside that PDF file. A report can be downloaded only by the account that created it. The app also keeps your profile (name, birth date and hour, time zone) and your last chart on your device so it can open without a network.

AI features

The app contains optional “explain with AI” features. They are switched off in the current release and nothing is sent to any language-model provider. If a later release enables them, this section will name the provider, say exactly what is sent and give you a way to opt out before anything leaves our server.

Deleting your data

Profile → “Delete account” permanently removes the account, its stored analyses and every report file. Clearing the app’s data or uninstalling it removes the profile and chart kept on the device. You can also email hello@llab08.com from the address on the account.

Server logs

Requests reach the server through Cloudflare, which — like our own server — keeps short-lived standard access logs (IP address, time, path). We use them only to keep the service running and do not combine them with account data.

Nature of the content

Charts and readings are a cultural decision framework offered for reflection and entertainment. They are not predictions and not medical, financial, legal or other professional advice; the app says so at onboarding and under every result.

Children

The app is not directed at children and we do not knowingly collect data from anyone under 13.

Contact: hello@llab08.com · Updated 7 September 2026 · All privacy notices