QNTSTACK Privacy Policy

QNTSTACK values the privacy of its users and processes only the minimum information necessary to provide its services. This Privacy Policy explains what information QNTSTACK collects and how that information is used.

1. Personal Information We Collect

QNTSTACK provides account registration and sign-in through Google Sign-In.

During the Google Sign-In process, QNTSTACK collects and processes a unique user identifier associated with the user's Google Account in order to identify the user.

Information collected: User ID (unique Google Account identifier)
Collection method: Google Sign-In

QNTSTACK currently does not store or use the user's name, email address, or profile photo that may be provided through Google Sign-In as QNTSTACK account information or for the purpose of providing the service.

2. How We Use Personal Information

The collected User ID is used for the following purposes:

QNTSTACK does not use the collected User ID for advertising or marketing purposes.

3. Retention of Personal Information

QNTSTACK retains personal information necessary to identify user accounts and provide the service while the user continues to use QNTSTACK.

If a user requests account deletion, personal information and service data associated with the account will be deleted.

However, if certain information must be retained for a specified period under applicable laws or regulations, such information may be stored separately for the required retention period and deleted afterward.

4. Sharing Personal Information with Third Parties

QNTSTACK does not sell or provide users' personal information to advertisers or other third parties.

However, information may be disclosed when required by law or when the user has provided prior consent, to the extent permitted by applicable laws and regulations.

5. Secure Transmission of Personal Information

QNTSTACK protects user data during transmission over networks by using HTTPS (TLS).

6. Account and Personal Data Deletion

Users may request the deletion of their QNTSTACK account and the personal information and service data associated with their account at any time.

Once account deletion has been completed, the deleted information cannot be restored.

Request Account Deletion

7. External Authentication Service

QNTSTACK uses Google Sign-In for user authentication.

Information processed by Google during the Google Sign-In process may be subject to Google's Privacy Policy and other applicable Google policies.

8. Changes to This Privacy Policy

This Privacy Policy may be updated due to changes in service features, applicable laws, regulations, or related policies.

If this Privacy Policy is updated, QNTSTACK may provide notice of the changes through the QNTSTACK service or related pages.

9. Privacy Inquiries

For questions regarding the processing of personal information or account deletion, please contact us at the email address below.

Service: QNTSTACK
Effective Date: October 5, 2026