Privacy Policy

Last Updated: August 1, 2026
Effective Date: August 1, 2026

Welcome to "Super Math" (hereinafter referred to as "this App")! This App is a tool focused on computational ability training, offering speed math practice, mock exams, and leaderboard features. We understand the importance of your personal information and are committed to protecting your privacy.

Please read and fully understand this Privacy Policy before using this App. If you do not agree with any part of this policy, please stop using the App immediately. By using this App, you signify your consent to our processing of your information in accordance with this policy.

1. Information We Collect and How We Use It

When you use "Super Math," we adhere to the principles of lawfulness, fairness, and necessity in collecting and using your personal information.

1.1 Information Collected via Google Sign-In

When you use "Google Sign-In," we receive the following basic public information from your Google account:

• Name (Display Name): Used to identify you on the leaderboard and your personal profile.

• Profile Photo (associated with your email address): Displayed on the leaderboard and your profile page.

• Email Address: Used as your unique identifier (User ID) to distinguish users, track training records, and calculate leaderboard rankings.

Important: We do not collect or store your Google account password. All authentication is handled by the official Google SDK, and we only receive the basic information returned after successful authentication.

1.2 Information You Voluntarily Provide

After logging in, you may voluntarily supplement your profile with the following information:

• Custom Nickname (modifiable, independent of your Google account name)

• Personal Signature

• Gender

• Date of Birth

This information is provided voluntarily by you, and you may modify or delete it at any time from the "Profile" page within the App.

1.3 Training Data and Leaderboard Information

To provide you with the leaderboard feature, we collect and store the following data:

• Your speed math practice records (e.g., accuracy rate, time taken, score, training mode, completion time)

• The above data is linked to your unique identifier (email address) to calculate rankings and generate the leaderboard

The leaderboard displays to all users: your nickname, profile photo, and performance data (e.g., highest score, fastest time). Your email address, gender, date of birth, and other private information are never displayed on the leaderboard or any public area.

1.4 Device Information and Operational Support

To ensure the normal functioning of our services and maintain core operations, we collect your device model, operating system version, unique device identifier (Android ID), IP address, software version number, and operation logs. This information is used for basic maintenance and troubleshooting.

1.5 Permission Requests

• Internet Access: Required for authentication, data synchronization, and leaderboard updates.

• (Optional) Storage Permission: Used for caching data to improve performance.

You may refuse to grant these permissions. Refusal will not affect offline speed math practice but will prevent you from using login, leaderboard, and other online features.

2. Data Storage and Protection

2.1 Storage Location

Your personal information (including email address, nickname, profile photo, and training records) is uploaded and stored on our own cloud servers (located in Chengdu, China).

2.2 Data Security Measures

We take the following measures to protect your data:

• Encrypted Transmission: All data is transmitted between your device and our servers via HTTPS/TLS encryption.

• Encrypted Storage: Your email address and other sensitive identifiers are stored in encrypted form in our database.

• Access Control: Only authorized operations personnel can access the database, subject to strict permission management and auditing.

• Regular Backups: We perform regular backups to prevent data loss.

While we implement these measures, please understand that no internet transmission method is 100% secure, and we cannot guarantee absolute security against all malicious technical means.

2.3 Data Retention Period

We retain your personal information only as long as necessary for the purposes described in this policy:

• Active Account: Your data will be retained to maintain your training history and leaderboard ranking.

• After Account Deletion: We will delete all your personal information and training records within 30 days of receiving your deletion request, unless otherwise required by law.

3. Sharing, Transfer, and Public Disclosure of Your Information

3.1 Sharing

We do not share your personal information with any third-party companies, organizations, or individuals, except in the following cases:

• Google Services: Your authentication is processed by Google Play Services. Please also refer to the Google Privacy Policy (https://policies.google.com/privacy).

• Legal Requirements: We may disclose your information if required by law, litigation, or government authorities.

• With Your Explicit Consent: We will share your information with third parties only after obtaining your explicit consent.

3.2 Transfer

We do not transfer your personal information to any company, organization, or individual. However, in the event of a merger, acquisition, asset transfer, or bankruptcy, if a transfer of personal information is involved, we will notify you in advance and require the new holder to continue to comply with this Privacy Policy.

3.3 Public Disclosure

We will publicly disclose your personal information only in the following circumstances:

• With your explicit consent;

• When required by mandatory legal provisions.

Special Note: The leaderboard publicly displays only the nickname and profile photo that you have set, as well as your training scores. Your email address, gender, date of birth, and other private information are never displayed on the leaderboard or in any public space.

4. Your Rights

You have the following rights regarding your personal information:

Right

How to Exercise

Access Personal Information

View all your information on the "Profile" page within the App

Correct Personal Information

Modify your nickname, signature, gender, or date of birth at any time on the "Profile" page

Delete Training Records

Clear individual or all training records on the "History" page

Delete Account

Submit a request via "Settings → Delete Account" in the App; we will complete data deletion within 30 days

Revoke Authorization

Revoke this App's access from your Google account management console

Withdraw Consent

Uninstall the App to stop data collection; however, historical data already uploaded to our servers must be deleted via account deletion

If you are unable to exercise these rights through the methods above, you may contact us using the information in Section 8, and we will respond within 15 business days.

5. How We Handle Children's Personal Information

This App is primarily intended for adults. We take the protection of minors' personal information very seriously:

• If you are a minor (especially a child under 13), we recommend that you review this policy with your parent or guardian and use our services only with their consent.

• If we discover that we have collected personal information from a child without verifiable parental consent, we will take steps to delete that information as soon as possible.

6. Cross-Border Transfer of Your Personal Information

Because we use Google Play Services and the Google Cloud Platform, your information may be transferred across different jurisdictions:

• Your authentication information is processed through Google's servers (which may be located in the United States);

• Your profile and training data are stored on our cloud servers (located in [Please fill in the server location] ).

We take appropriate measures (such as standard contractual clauses) to ensure that your information receives the same level of protection during transfer as described in this policy.

7. Updates to This Policy

We may update this Privacy Policy from time to time. When material changes are made (such as changes to data collection purposes, storage methods, or third-party sharing practices), we will notify you through:

• Prominent in-app pop-ups or announcements;

• If necessary, notifications sent to your registered email address.

After this policy is updated, your continued use of this App will be deemed as your acceptance of the updated policy. If you do not agree to the updated policy, please stop using this App and request account deletion.

8. How to Contact Us

If you have any questions, comments, or suggestions about this Privacy Policy, or if you need to delete your account or data, please contact us at:

• Email: daboluo719@gmail.com

We will review your request and respond within 15 business days.