Privacy Policy

The Melenix app (Yijiantang User Client, “the App”) is a Health & Fitness app provided by Hubei Yijiantang Intelligent Technology Group Co., Ltd. (“we,” “us,” or “our”). This is our official Privacy Policy for Google Play and in-app. It fully discloses what user data the Melenix app accesses, what we collect, how we use it, and how we share and store it.

Last updated: March 17, 2025  |  Effective date: March 17, 2025

Website: https://www.yijiantang.com/

Introduction

Melenix is a Health & Fitness app that lets you connect to and control compatible health devices (e.g., hot/cold therapy, vitiligo treatment devices) and access programs and support. When you use our services, we may access and collect information related to you. This Privacy Policy fully discloses what data the Melenix app accesses, what data we collect, and how we use that data. We also explain how we store and share it, and how you can access, update, control, and protect it. By using or continuing to use our services, you agree to our access, collection, use, storage, and sharing of your information in accordance with this Privacy Policy.

1. Data the Melenix App Accesses, Collects, and Uses

Below we disclose each category of data that the Melenix app may access (on your device), collect (transmitted to or stored by us), and use. If you do not provide required information or permissions, you may not be able to register or use certain features.

Summary: The Melenix app accesses location (for Bluetooth discovery and device features), Bluetooth (to find and control health devices), camera (QR code and photo), and photos/files (profile and feedback). We collect account and identity data, device and usage data (including which devices you use and how you use them), location when used for app features, photos you upload, network/device identifiers, and content you provide (feedback, AI input). We do not collect medical records, diagnoses, or other sensitive health data beyond device usage and operation data necessary for the app’s Health & Fitness features. We use these data only for the purposes stated above and in section 4 below.

2. Storage of Information

2.1 Manner and duration: Generally, we only store your personal information for as long as necessary to fulfill the purposes of our services or as required by laws and regulations. We store your information securely, including local storage (e.g., app data cache), databases, and server logs.

2.2 Geographic location: We do not currently transfer or store your personal information across borders. If we need to do so in the future, we will inform you of the purpose, recipients, safeguards, and risks, and obtain your consent. We store personal information collected within China in China, in accordance with applicable laws and regulations.

2.3 When we stop a product or service: If a product or service is discontinued, we will notify you by push notification, announcement, or other means, and delete or anonymize your personal information within a reasonable period, except where otherwise required by law.

3. Information Security

We use various security technologies and procedures to prevent loss, misuse, unauthorized access, or disclosure of information. For example, in certain services we use encryption (such as SSL) to protect personal information you provide. Please understand that due to technical limitations and possible malicious conduct, we cannot guarantee that information will always be 100% secure, even when we take strong security measures.

4. How We Use the Data We Access and Collect

We use the data disclosed in section 1 only for the following purposes:

• Account and identity: To provide registration, login, profile display, and account security.
• Device and usage: To connect and control your health devices, recommend programs, troubleshoot issues, provide after-sales support, and improve our products.
• Location: To discover nearby Bluetooth devices and to support device features that require location; we do not use it for unrelated advertising or tracking.
• Bluetooth, camera, photos: To add devices (QR scan), connect and control devices, and display your profile or feedback images.
• Network and device identifiers: To send and receive API requests, deliver messages, and maintain service stability and security.
• User-generated content: To respond to feedback and to provide AI Q&A and product improvement.
• Identity verification, customer service, security, fraud detection, archiving, and backup as needed to run our services.
• Software authentication, management, and updates.
• With your consent, surveys or evaluation of advertising and promotions; and other purposes permitted by applicable laws and regulations.

5. Sharing, Transfer, and Public Disclosure of Information

We do not actively share or transfer your personal information to third parties. Where other sharing or transfer is necessary, we will obtain your explicit consent directly or ensure the third party does so.

For advertising delivery and to evaluate and optimize ad performance, we may need to share some data with advertisers and their agents or other third-party partners. We require them to comply strictly with our data privacy measures and requirements, including under data protection agreements, undertakings, and related policies, and to avoid identifying individuals to protect privacy. We do not share information that can identify you (such as your name or email address) with partners unless you explicitly authorize it.

We do not publicly disclose the personal information we collect. When public disclosure is required, we will inform you of the purpose, the types of information, and any sensitive information involved, and obtain your explicit consent.

As our business develops, we may undergo mergers, acquisitions, or asset transfers. We will inform you of such circumstances and continue to protect your personal information in accordance with laws and regulations and standards no lower than those in this Privacy Policy, or require the new controller to do so.

Under applicable laws, regulations, and national standards, we may share, transfer, or publicly disclose personal information without your prior consent in circumstances such as: information collected from legally disclosed sources (e.g., legitimate news, government disclosure); information you have voluntarily made public; where necessary to protect life, property, or other major legitimate interests of you or others and it is difficult to obtain consent; where directly related to criminal investigation, prosecution, trial, or execution; where directly related to public safety, public health, or major public interests; where directly related to national or defense security; or as otherwise provided by law.

6. Your Rights

While you use our services, we may provide you with settings (depending on the product) so you can access, delete, correct, or withdraw your personal information. We also provide channels for complaints and reports, and we will handle your feedback in a timely manner. If you cannot exercise your rights through the above means, you may contact us using the details in the “Privacy Contact” section below; we will respond in accordance with applicable laws. You have the right to close your account; we will process, delete, or anonymize your personal information as required by law.

7. Changes

We may update this Privacy Policy from time to time. When we do, we will notify you of the new Privacy Policy when you update the app and will state the effective date. Please read the updated policy carefully. If you continue to use our services, you agree to our handling of your personal information under the updated Privacy Policy.

8. Children

We encourage parents or guardians to guide minors under 18 in using our services. We recommend that minors ask their parents or guardians to read this Privacy Policy and to seek their consent and guidance before submitting personal information.