Privacy Agreement

Effective date: January 1, 2024 | Last updated: July 8, 2026

Welcome to YOYONG (hereinafter referred to as "we" or "YOYONG"). YOYONG is developed and operated by Tianjin Youyangdeyi Technology Co., Ltd.. We understand the importance of personal information to you and are committed to protecting your privacy. This Privacy Agreement (hereinafter referred to as "this Agreement") aims to explain to you how we collect, use, store and protect your personal information.

Please read this agreement carefully before using YOYONG services. When you use our services, you agree to the entire content of this Agreement.

1. Information we collect

YOYONG is an online environmental sound tool that can be used without registration. We minimize information collection:

1.1 Information you actively provide

• None. YOYONG does not require you to register an account, and does not collect personally identifiable information such as name, mobile phone number, and email address.

1.2 Information we collect automatically

• Device and log information: When you visit YOYONG, the server may automatically record your IP address, browser type, operating system version, access time and page. This type of information is only used for security protection and access statistics and will not be associated with your personal identity.
• Statistical information: We use Baidu website statistics service to collect anonymous access data, including page views, access duration, source channels and other information, for analysis and improvement of service experience.
• Sound preference settings: The sound combination, volume preference and other information you set in YOYONG are only stored in the local browser storage (localStorage) of your device. This data is not uploaded to our servers and cannot be accessed by us.

2. How we use information

The information we collect is used only for the following purposes:

• Service provision and optimization: Analyze access data to improve product experience and stability.
• Security protection: Identify and defend against malicious attacks, crawler abuse and other security threats.
• Statistical analysis: Use anonymized access data for traffic statistics (such as page views, user source channels), which does not involve personal identification.

3. Cookies and similar technologies

• We may use necessary cookies or browser local storage to save your sound preferences to improve your experience. This data is stored entirely locally on your device.
• We do not use third-party tracking cookies or ad targeting cookies.
• You can clear local storage data or disable cookies in your browser settings, but this may affect some functionality (such as sound preferences not being saved).

4. Third-party services

4.1 Statistical services

YOYONG uses the following third-party statistical services to analyze website usage and help us improve our products:

• Baidu Website Statistics (Baidu Statistics): Provided by Baidu, it is used to analyze anonymous statistical data such as website visits, user sources, page browsing behavior, etc. Baidu Statistics will use cookies to collect anonymous access information. For details, please refer to Baidu Statistics Privacy Policy.

4.2 Umeng SDK

• SDK name: Umeng+ Mobile Statistics SDK
• Developer: Umeng Tongxin (Beijing) Technology Co., Ltd.
• Scope of information collected: IMEI/Mac/Android ID/IDFA/OPENUDID/GUID/SIM card IMSI information, device MAC address.
• Purpose: Used for APP statistical functions and compatibility judgment, APP safe operation and risk verification.
• SDK Privacy Policy Link: https://www.umeng.com/page/policy

5. Information storage and security

• Local Storage: Your sound preference data is only saved locally on your device and is not uploaded or backed up.
• Server logs: Server access logs are stored encrypted, accessible only to authorized personnel, and cleaned regularly.
• Security Measures: We use industry-accepted technical means to protect information security, but no Internet transmission can be guaranteed to be 100% secure.

6. Your rights

According to the "Personal Information Protection Law of the People's Republic of China" and other relevant laws and regulations, you have the following rights:

• Right to Know: Learn how we process your personal information.
• Right to erasure: You can clear your locally stored data at any time in your browser. If you need to delete server access logs, you can apply through the contact information below.
• Withdraw consent: You can withdraw your consent to the collection of data by disabling cookies and local storage in your browser settings.

7. Protection of minors

YOYONG is a universal tool for all ages and does not contain content inappropriate for minors. If you are a minor under 14 years old, please use it under the guidance of a guardian. We will not actively collect personal information from minors.

8. Updates to this Agreement

We may update this Privacy Agreement from time to time. The updated Agreement will be posted on this page with the date it was updated at the top. When there are major changes, we will notify you in a prominent place on the website. It is recommended that you review this Agreement regularly.

9. Contact us

If you have any questions, suggestions or complaints about this Privacy Agreement, please contact us through the following methods:

• Operating entity: Tianjin Youyangdeyi Technology Co., Ltd.
• Website: wwww.yoydoy.com
• Email: dong@yoydoy.com