Privacy and Data

Last updated: August 29, 2026

This Privacy and Data Policy explains how South China Brain Control (Guangdong) Intelligent Technology Co., Ltd., operating under the SereniBrain brand (“SereniBrain,” “we,” “us,” or “our”), collects, uses, shares, and protects information when you visit serenibrain.com, use the SereniBrain mobile application and EEG headband, make a purchase, or contact support.

“Personal information” means information that identifies you or can reasonably be linked to you. It does not include information that has been anonymized or de-identified so that it can no longer reasonably identify you.

1. Information we collect

Depending on how you interact with SereniBrain, we may process:

Contact information: name, email address, telephone number, billing address, and shipping address.
Order information: products purchased, payment confirmation, delivery status, returns, warranty requests, and support history.
Account information: account identifiers, login details, preferences, and settings.
Website and device information: IP address, browser type, device identifiers, pages viewed, referring pages, and interactions with the website.
Communications: information you provide when contacting customer support, submitting a form, or communicating with us.
Marketing preferences: subscription status and communication choices.

Payment providers process payment-card information on our behalf. SereniBrain does not receive or store your complete payment-card number.

2. SereniBrain App and training data

Training data stays on your device

Raw EEG signals, processed brainwave metrics, session scores, training history, and session reports are stored locally on the user’s device. SereniBrain does not upload this training data to its servers.

App account and technical information

Depending on the account method and features you use, the App may process limited account information, such as a telephone number or another account identifier, together with the App version, operating system, device model, Bluetooth connection status, and diagnostic information needed to operate or support the App.

The App may request Bluetooth, nearby-device, location, photo, or media permissions where required by the operating system or by a feature you choose to use. You can manage these permissions in your device settings.

3. Where information comes from

We may receive personal information:

Directly from you when you create an account, place an order, contact us, or use a feature.
Automatically from your browser or device through cookies and similar technologies when you use the website.
From service providers that help us process payments, operate the store, fulfill orders, deliver packages, prevent fraud, or provide technical support.
From marketplaces or other third parties when necessary to support an order or request you made through them.

4. How we use information

We use personal information to:

Provide and operate the website, App, headband, accounts, and requested features.
Process payments, fulfill orders, provide tracking, and manage returns and warranty requests.
Remember preferences and improve website and App performance, reliability, and usability.
Respond to questions and provide customer or technical support.
Verify accounts, prevent fraud, investigate misuse, and maintain service security.
Send marketing communications where permitted. You may unsubscribe from promotional emails at any time.
Comply with legal, tax, accounting, regulatory, and dispute-resolution obligations.

5. Legal bases for processing

Where the law requires a legal basis, we process personal information as necessary to perform a contract with you, comply with legal obligations, pursue legitimate interests such as operating and securing our services, or based on your consent. You may withdraw consent at any time where consent is the legal basis, without affecting processing that occurred before withdrawal.

6. How information is shared

We may share only the information reasonably necessary with:

Shopify, which hosts and supports our online store.
Payment processors and fraud-prevention providers.
Amazon fulfillment or logistics services and delivery carriers.
Customer-support, hosting, analytics, security, and technical service providers.
Professional advisers, regulators, courts, law-enforcement authorities, or other parties where disclosure is legally required or reasonably necessary to protect rights and safety.
A buyer, investor, lender, or successor in connection with a merger, financing, restructuring, acquisition, or sale of assets.

We do not sell raw EEG data or training data. That data is not uploaded to SereniBrain servers.

7. Our relationship with Shopify

Our store is hosted by Shopify. Shopify processes personal information about visits, accounts, purchases, and interactions to provide, secure, and improve its commerce services. Information submitted through the website may be processed by Shopify and its service providers in countries outside your own.

For more information about Shopify’s processing and available controls, see the Shopify Consumer Privacy Policy and the Shopify Privacy Portal.

8. Cookies, analytics, and advertising

Our website and Shopify may use cookies and similar technologies to keep the store working, remember preferences, measure performance, prevent fraud, and, where enabled, support advertising. Where required, you can manage non-essential cookies through the website’s privacy controls.

Residents of certain U.S. states may use the “Your Privacy Choices” page or a supported Global Privacy Control signal to opt out of processing that may be considered a sale, sharing, or targeted advertising under applicable law.

9. Data retention

Local training data remains on the device until it is deleted through the App, the account is deleted, the App is removed, or the device is reset, depending on the device and operating system.
App account information is retained while the account is active and as reasonably necessary to operate the account, prevent abuse, resolve disputes, or comply with law.
Website, order, tax, support, and transaction records are retained for legitimate business purposes and for periods required by applicable law.

10. Account and data deletion

You can delete your App account from within the App. Deleting the account deletes the training data associated with the App account. This does not require us to delete transaction, tax, fraud-prevention, warranty, or legal records that we must retain.

You may also email support@serenibrain.com to request access, correction, deletion, or a copy of personal information that SereniBrain holds about you. We may need to verify your identity before completing a request.

11. Your privacy rights

Depending on where you live, you may have rights to:

Know whether and how we process personal information.
Access, correct, or delete personal information.
Receive a portable copy of certain information.
Restrict or object to certain processing.
Withdraw consent where processing is based on consent.
Opt out of certain targeted advertising, sales, or sharing of personal information.
Appeal a decision we make about a privacy request where applicable law provides that right.

These rights are not absolute and may be subject to legal exceptions. We will not discriminate against you for exercising an applicable privacy right. An authorized agent may submit a request where permitted by law, but we may require proof of authority and verification of your identity.

12. International processing

SereniBrain is based in China and works with service providers in other countries. Website, account, order, and support information may therefore be processed outside your country. Where required, we use recognized contractual or legal safeguards for international transfers.

13. Third-party websites

Our services may link to websites, app stores, marketplaces, or platforms operated by third parties. Their privacy and security practices are governed by their own policies. A link does not mean that SereniBrain controls or endorses the third party’s privacy practices.

14. Children

The App is intended for users aged 13 or older. Users under the age of majority should use the App with permission from a parent or legal guardian. We do not knowingly collect personal information from children in violation of applicable law. A parent or guardian may contact us to request deletion of information submitted by a child.

15. Security

We use reasonable administrative, technical, and organizational measures to protect information. No method of electronic storage or transmission is completely secure, so absolute security cannot be guaranteed. Please do not send sensitive information through insecure channels.

16. Questions and complaints

If you have a question or complaint about how we handle personal information, contact us first at support@serenibrain.com. Depending on where you live, you may also have the right to complain to or seek review by your local data-protection or consumer-protection authority.

17. Changes to this policy

We may update this policy to reflect changes in our products, practices, or legal obligations. The current version and its effective date will be posted on this page. We will provide additional notice where required by law.

18. Contact

South China Brain Control (Guangdong) Intelligent Technology Co., Ltd.
SereniBrain
Guangzhou, Guangdong, China
support@serenibrain.com