吉日 Lucky Day (“the app,” “we,” “us”) is built to respect your privacy. This policy explains what the app accesses, why, and what happens to that information. In short: the app has no accounts, no analytics, no advertising, and no tracking, and it does not collect or sell your personal data.
Information We Access
Birth details
The app asks for your date of birth, and optionally your time and place of birth, because those are what a BaZi chart is calculated from. The calculation happens entirely on your device. These details are stored on your device only, are never sent to us, and are removed when you delete the app.
Location
If you enable it, the app uses your device’s approximate location to calculate local sunrise and sunset times and to show current weather on the widget. Your coordinates are sent to Open-Meteo (open-meteo.com), a weather service, solely to retrieve the forecast for your area. Location is never stored on our servers, never linked to your identity, and never used for advertising or tracking. You can deny or revoke location access at any time in the Settings app, and the rest of the app keeps working.
Calendar
If you turn on the optional calendar feature, the app reads all-day events from your Birthdays calendar and any subscribed holiday calendars, so it can show today’s birthday or holiday on the calendar page. This happens entirely on your device. Calendar data is never transmitted, never stored by us, and never leaves your phone. The app deliberately ignores timed events such as work meetings. You can revoke calendar access at any time in the Settings app.
Ask Lucky Day
On devices that support Apple’s on-device model, your question and the reading it is answered against never leave your phone. Nothing is sent anywhere, and nothing is stored by us.
Purchases
Purchases are handled entirely by Apple. We never see or receive your payment details, and we are not sent your name, email address or Apple Account. Your purchase is remembered by Apple and restored to your other devices by Apple. If you buy a subscription, you can view or cancel it in your Apple Account settings; refunds are handled by Apple, not by us.
Information We Do Not Collect
The app has no user accounts and no login. We do not collect your name, email address, contacts, usage analytics, device identifiers, or advertising data, and we do not use third-party analytics or advertising software.
Data Stored on Your Device
Your birth details, preferences, and display settings are stored only on your device, and shared with the app’s widget through a private, sandboxed app group. This information never leaves your device and is removed when you delete the app.
Third-Party Services
Open-Meteo, used to fetch weather. When weather is enabled, your approximate coordinates are sent to Open-Meteo to return a local forecast. Please see Open-Meteo’s own terms for how they handle requests.
Apple, which processes all purchases and subscriptions. See Apple’s own privacy policy for how they handle payment information.
Children’s Privacy
The app is not directed to children under 13 and does not knowingly collect personal information from them.
Changes to This Policy
We may update this policy from time to time. Material changes will be reflected here with a new effective date.
Contact
If you have any questions about this policy, contact us at jason@jasonmei.com.
吉日 Lucky Day (“the app,” “we,” “us”) is built to respect your privacy. This policy explains what the app accesses, why, and what happens to that information. In short: the app has no accounts, no analytics, no advertising, and no tracking, and it does not collect or sell your personal data.
Information We Access
Birth details
The app asks for your date of birth, and optionally your time and place of birth, because those are what a BaZi chart is calculated from. The calculation happens entirely on your device. These details are stored on your device only, are never sent to us, and are removed when you delete the app.
Location
If you enable it, the app uses your device’s approximate location to calculate local sunrise and sunset times and to show current weather on the widget. Your coordinates are sent to Open-Meteo (open-meteo.com), a weather service, solely to retrieve the forecast for your area. Location is never stored on our servers, never linked to your identity, and never used for advertising or tracking. You can deny or revoke location access at any time in the Settings app, and the rest of the app keeps working.
Calendar
If you turn on the optional calendar feature, the app reads all-day events from your Birthdays calendar and any subscribed holiday calendars, so it can show today’s birthday or holiday on the calendar page. This happens entirely on your device. Calendar data is never transmitted, never stored by us, and never leaves your phone. The app deliberately ignores timed events such as work meetings. You can revoke calendar access at any time in the Settings app.
Ask Lucky Day
On devices that support Apple’s on-device model, your question and the reading it is answered against never leave your phone. Nothing is sent anywhere, and nothing is stored by us.
Purchases
Purchases are handled entirely by Apple. We never see or receive your payment details, and we are not sent your name, email address or Apple Account. Your purchase is remembered by Apple and restored to your other devices by Apple. If you buy a subscription, you can view or cancel it in your Apple Account settings; refunds are handled by Apple, not by us.
Information We Do Not Collect
The app has no user accounts and no login. We do not collect your name, email address, contacts, usage analytics, device identifiers, or advertising data, and we do not use third-party analytics or advertising software.
Data Stored on Your Device
Your birth details, preferences, and display settings are stored only on your device, and shared with the app’s widget through a private, sandboxed app group. This information never leaves your device and is removed when you delete the app.
Third-Party Services
Open-Meteo, used to fetch weather. When weather is enabled, your approximate coordinates are sent to Open-Meteo to return a local forecast. Please see Open-Meteo’s own terms for how they handle requests.
Apple, which processes all purchases and subscriptions. See Apple’s own privacy policy for how they handle payment information.
Children’s Privacy
The app is not directed to children under 13 and does not knowingly collect personal information from them.
Changes to This Policy
We may update this policy from time to time. Material changes will be reflected here with a new effective date.
Contact
If you have any questions about this policy, contact us at jason@jasonmei.com.