Privacy Policy

Last Updated: April 13, 2026

Effective Date: April 13, 2026

This Privacy Policy applies to the LinkPulse application and related services provided by Shenzhen DeepInteraction Technology Co., Ltd. ("we", "us", or "our").

If you have any questions or concerns regarding this Privacy Policy, please contact our Data Protection Officer at: sduhudong@163.com

1. Information We Collect and Use

We only collect information necessary to provide and maintain LinkPulse’s core functionality, including Bluetooth device control and remote device control via invitation code.

1.1 Account Registration & Login

We collect your email address and password when you register an account. This information is used for account login, identity verification, and account security.

1.2 Device Information

To support Bluetooth and remote control features, we may collect:

Device model, operating system version, and basic device identifiers
Bluetooth status and nearby Bluetooth device information
Network status for stable remote connections

1.3 Sensor Information

To enable gesture controls such as Shake and Swipe for Bluetooth device control, we access motion sensors (accelerometer, gyroscope) on your device. All sensor data is processed locally on your device and is not uploaded to our servers.

1.4 Usage Information

We may collect non-personal usage data, including connection logs, operation logs, and app performance data. This data is only used to improve app stability and functionality.

2. How We Use Your Information

We use your information only for the following purposes:

To create, manage, and secure your account
To establish and maintain Bluetooth device connections
To provide remote device control via invitation code
To improve app stability, fix issues, and optimize user experience

We do NOT use your information for advertising, user profiling, or social recommendation.

3. Data Sharing, Transfer, and Disclosure

We do not sell, rent, or share your personal information with third parties except:

With your explicit consent
When required by applicable laws or legal processes
To protect the safety, rights, or property of LinkPulse and its users

4. Data Storage and Security

We use industry-standard encryption and security measures to protect your personal information. All data is stored securely and retained only as long as necessary to provide the service.

5. Your Rights

You may:

Access, update, or delete your account information
Withdraw permissions (Bluetooth, sensors, network) at any time
Request account deletion at any time within the app

6. Children’s Privacy

LinkPulse is not intended for use by children under the age of 13. We do not knowingly collect information from children.

7. Changes to This Policy

We may update this policy occasionally. Material changes will be notified within the app.

8. Contact Us

Data Protection Officer

Email: sduhudong@163.com