Privacy Policy
This privacy policy applies to the 数学星球 / Math Planet app for mobile devices, together with any related services operated by YB (collectively, the "Application"). YB is referred to as the "Service Provider" in this policy.
This policy was generated with App Privacy Policy Generator and adapted to match the current behavior of the Application.
What information does the Application obtain and how is it used?
The Application is designed for children under 12 and does not require account registration. The Application does not upload personal information to a server, does not use advertising identifiers, and does not track users across apps or websites.
To provide a personalized learning experience and restore progress on the same device, the Application stores the following information locally on the user's device:
- Child nickname
- Avatar selection
- Age group setting
- Training history and exercise results
- Parent settings
- App language setting
This information is stored locally on the device and is not transmitted to the Service Provider or shared with third parties by the current version of the Application.
Does the Application collect precise real-time location information?
This Application does not collect precise real-time location information from the user's mobile device.
Do third parties see or have access to information obtained by the Application?
The current version of the Application does not include advertising SDKs, analytics SDKs, social login SDKs, payment SDKs, or other third-party services that receive user data from the Application.
Because the Application does not upload the locally stored learning profile or training records, this data is not shared with third parties.
What are my opt-out and deletion rights?
Users can delete locally stored child profile information, settings, and learning records by using the reset option in the parent settings area of the Application.
Users can also uninstall the Application to remove the Application and its local data from the device, subject to the operating system's normal behavior.
If you contact the Service Provider directly or voluntarily provide information by email or other means, you may request deletion of that information by contacting 1165615140@qq.com.
Children
The Application is designed for children under 12 and should be used with parent or guardian awareness and supervision.
The Application does not require children to create an account and does not knowingly collect children's personal information through online services. The child nickname, avatar selection, age group, and learning records are stored locally on the device to support the learning experience and are not uploaded or shared by the current version of the Application.
Parents or guardians can reset local child profile information and learning data in the parent settings area of the Application. If a parent or guardian believes that a child has voluntarily provided personal information to the Service Provider outside the Application, please contact 1165615140@qq.com.
Security
Because the current version of the Application stores learning data locally and does not upload it to a server, the risk of server-side exposure is limited. However, no security method is perfect. Users should protect their devices with appropriate device-level security such as screen locks and operating system updates.
Data breach notification
The current version of the Application does not collect personal data through online services. If a security incident occurs involving information voluntarily provided to the Service Provider outside the Application, the Service Provider will handle the incident and notify affected users as required by applicable law.
Changes
The Service Provider may update this Privacy Policy from time to time. The updated version will show a new effective date. Where required by law or platform policy, the Service Provider will request consent or provide additional notice before material changes take effect.
Previous versions of this Privacy Policy may be requested by contacting the Service Provider at 1165615140@qq.com.
Your consent
By using the Application, you acknowledge this Privacy Policy. If you voluntarily provide information to the Service Provider and processing is based on consent, you may withdraw that consent at any time without affecting processing carried out before withdrawal.
Contact us
If you have any questions about privacy while using the Application, please contact the Service Provider by email:
1165615140@qq.com