Privacy Policy

Welcome to our Applications (hereinafter referred to as "our Applications"), provided and managed by QuantumGain Co., Limited (referred to as "we" or "the company"). We are committed to protecting your personal information and privacy. This Privacy Policy explains how we collect, use, and share your information when you use any of our Applications, ensuring that your privacy rights are protected.

1. Information We Collect

We may collect the following types of information:

a. Information You Provide

Registration Information : When you register and log in using your phone number within our Applications, we collect your phone number and carrier information and device ID to provide login services.
Profile Information : You may choose to fill in or update your profile information, but this will not affect your use of basic features of our Applications and related services.

b. Information Collected While Using Our Services

Device Information : We may collect information about your device, including model, operating system, app version, device identifiers, memory details, and network connection.
Transaction Information : When you make purchases via Google Play Store or Apple Store , we collect transaction details to process your order. This may include your device ID, transaction records (such as IP address, purchase history, currency type, etc.).
Communication Records : When you contact our customer support team, we may collect relevant information (such as name,phone number, email, device ID, app version, etc.) to assist you and improve our services.
Location information : We will comprehensively judge your possible location based on the collected IP, device, payment and other information, and provide you with recommended services based on the approximate location information interpreted by the system. We will not actively obtain your precise location.
Camera and album information : Some functions in our Applications support uploading album photos or taking photos for uploading (such as uploading avatars and posting dynamics). We will use the photo selector provided by the official app market to protect your privacy.
Notifications ：When you open our Applications, you will be asked whether to authorize notification permissions. You can turn off authorization at any time.
Microphone ：Some functions in our Applications will ask whether to authorize microphone permissions. You can turn off authorization at any time.

c. Information Collected from Third Parties

We may collect information about you from other users or third parties, such as information collected when you log in via third‑party services within our Applications. In such cases, please refer to the privacy policy of that third‑party provider.

2. How We Use Your Information

We collect your information for the following purposes:

To provide you with access to and use of our Applications services.
To analyze usage and improve our products and services.
To provide personalized content and recommendations.
To process and maintain your transaction records.
To address and resolve technical issues, ensuring the service operates correctly.
To comply with legal requirements or protect the rights of users and the public.
To send you notifications and reminders and offer customer support.

3. How We Share Your Information

We do not share your personal information with third parties, except in the following circumstances:

With Your Explicit Consent.
Legal Requirements: We may share your information with law enforcement, regulatory agencies, or other government bodies when required or permitted by law.
Business Changes: In the event of a merger, acquisition, reorganization, or sale of some or all of our assets, we may share your information with the new owner.

4. Information Protection

We are committed to protecting your information by implementing various security measures to prevent information loss, misuse, or unauthorized access:

Data Encryption: We employ data encryption and other security measures to protect your personal information.
Access Control: Only authorized personnel have access to your personal information, and they are bound by strict confidentiality obligations.
Incident Response: We have an emergency response mechanism in place to notify you and take action in the event of a security incident, aiming to prevent or mitigate any loss.

5. Your Rights

You have the right to access, update, and delete your personal information. You can exercise these rights by operating independently through the functions provided within each of our Applications or contacting our support team. You will not be able to withdraw after deleting your personal information.

a. Change or Withdraw Authorization

You can change or withdraw authorization for location, camera, contacts, and photo album access via your device settings. Please note that withdrawing authorization may affect the functionality of related features within our Applications.

b. Account Deletion

If you no longer wish to use our services, please open the corresponding Application, go to its dedicated account‑cancellation page and follow the on‑screen steps:

Open your corresponding Application.
- Navigate to "Me" > "Account Cancellation".
- Click "Confirm"

After account deletion for a specific Application, all account data of that application will be deleted. However, we may retain necessary log data to comply with legal obligations or resolve disputes. Deleting an account for one Application will not affect your accounts on other Applications operated by us.

6. Cookies and Other Technologies

We use cookies to enhance user experience and analyze service usage. You can disable cookies, but this may affect personalized recommendation services.

7. Data Retention Policy

We will retain the user‑provided data during your use of our Applications. If you want us to delete the user‑provided data you provided through the application, please contact us through [Contact Us] of this agreement, and we will respond and process it within a reasonable time.

8. Protection of Minors

We do not use our Applications to intentionally solicit data from or market to children under the age of 18.

Our Applications are not intended for anyone under the age of 18. We do not intentionally collect personally identifiable information from children under the age of 18. If we discover that a child under the age of 18 has provided personal information, we will immediately delete that information from our servers. If you are a parent or guardian and you are aware that your child has provided us with personal information, please contact us so that we can take necessary action.

9. Policy Updates

We reserve the right to update this Privacy Policy periodically. We will notify you of any updates via in‑app notifications within our Applications or other means. We recommend reviewing this policy regularly to stay informed of any changes.

10. Contact Us

If you have any questions about this policy or wish to exercise your privacy rights, please contact us at:

Email: gaincoofficial@gmail.com