Privacy Policy

1. Scope

This policy applies to users who visit the website, register accounts, use Studio/API, make payments, or contact HEX Voice support.

If you do not agree with this policy, please stop using the Service. Continued use means you understand and accept the contents below.

2. Data we collect

Depending on how you interact with the Service, we may collect the following categories of data:

• Account information: name, email, hashed password (or Google SSO identifier), role/service plan.
• Service usage data: text submitted for synthesis, voice parameters, TTS job history, credits used, API keys (hashed/encrypted at rest).
• Payment data: order details, payment method, transfer references; we do not store full bank card numbers unless required.
• Technical data: IP address, browser type, access logs, cookies/session data needed to operate the Service.
• Support content: information you send via forms or contact channels (Zalo, email, phone, etc.).

3. Purpose of processing

We use data to:

• Provide, maintain, and improve the Text-to-Speech Service, including processing synthesis requests and returning audio.
• Authenticate logins, secure accounts, and prevent fraud and abuse.
• Manage plans, credits, invoices/orders, and customer support.
• Send notices related to your account, security, service updates, or policy changes (when needed).
• Perform aggregated operational analytics to improve performance and user experience.
• Comply with legal obligations or lawful requests from competent authorities.

4. Legal basis and processing methods

We process data to perform the contract/service you request, for legitimate interests in operating a secure system, and/or based on your consent where required (for example marketing opt-in, if offered).

Data may be processed on servers in Vietnam or cloud infrastructure we use to operate the Service, with appropriate access controls.

5. Data sharing

We do not sell your personal data. Data is shared only in the following cases:

• Infrastructure/technical providers that help operate the Service (hosting, storage, email, payment gateways) under contract and only as needed.
• Payment partners or banks for transaction reconciliation.
• When required by lawful requests from competent state authorities.
• When needed to protect the rights, property, or safety of HEX Voice, users, or the public against fraud/abuse.

6. Cookies and sessions

We use essential cookies/sessions to maintain login state and session security. You may configure your browser to limit cookies, but some features (especially login) may not work properly.

7. Storage and security

We apply reasonable technical and organizational measures to protect data, including password hashing, access controls, and environment separation where appropriate.

Data is retained as long as needed to provide the Service, reconcile payments, support customers, or as required by law. Afterwards, data may be deleted or anonymized under operational procedures.

No system is perfectly secure; you should also protect your devices and login credentials.

8. Your rights

To the extent permitted by applicable law and technical feasibility, you may request to:

• Access or update basic account information.
• Request deletion of your account or data that is no longer needed (except data that must be retained by law or for reconciliation).
• Withdraw consent for consent-based processing (without affecting the lawfulness of prior processing).
• Raise complaints about data processing through our support channels.

9. Children’s data

The Service is not directed at children under 16. If you believe we have collected a child’s data without an appropriate basis, please contact us for assistance.

10. Policy changes

We may update this Privacy Policy from time to time. New versions will be posted on the website with an updated date. Continued use after an update means you accept the new policy.

11. Contact

If you have privacy questions or wish to exercise rights related to personal data, contact HEX Voice support via the channels published at hexvoice.vn or the in-product help page.