Privacy Policy

Last updated: June 2025

Murmur is committed to protecting your privacy. This privacy policy explains how we collect, use, disclose and protect your information.

1. Information Collection Overview

Murmur is a white noise application that requires no registration. We are committed to minimizing data collection and only collect information necessary to provide and improve our services.

2. Information We Collect

2.1 Automatically Collected Information

Technical Information

  • IP address (for basic website functionality and security)
  • Browser type and version
  • Operating system information
  • Device type (desktop/mobile)
  • Access time and page visit records

Usage Data

  • Page views and time spent
  • Sound effect usage preferences (local storage only)
  • Click paths and user interaction patterns

2.2 Local Storage Information

We use browser local storage to save your personal preferences:

  • Sound effect volume settings
  • Dark/light theme preferences
  • Recently used scene settings

Important Note: This information is only stored on your device and is not transmitted to our servers.

2.3 Information We Do Not Collect

We explicitly do not collect the following information:

  • Personal identification information (name, email, phone number, etc.)
  • Account information (no registration required)
  • Payment information (service is free)
  • Geographic location information
  • Biometric data
  • Sensitive personal information

3. Information Use Purpose

We use collected information for:

3.1 Service Provision

  • Maintaining normal website operation
  • Providing audio playback functionality
  • Optimizing website performance and loading speed

3.2 Service Improvement

  • Analyzing user usage patterns to improve user experience
  • Identifying and fixing technical issues
  • Developing new features and sound effect content

3.3 Security Protection

  • Preventing malicious use and network attacks
  • Monitoring abnormal access patterns
  • Maintaining service stability

4. Information Sharing and Disclosure

4.1 We Do Not Sell Personal Information

We do not sell, trade or rent your personal information.

4.2 Limited Sharing Conditions

We may share information in the following circumstances:

Service Providers

  • Cooperating with trusted third-party service providers (such as CDN service providers)
  • These service providers can only access information necessary to perform their duties
  • They are obligated to protect your information

Legal Requirements

  • Responding to legal processes, government requests or legal obligations
  • Protecting our rights, property or safety
  • Preventing fraud or security threats

4.3 Business Transfer

If Murmur is acquired or merged, your information may be transferred as part of business assets.

5. Data Security

5.1 Security Measures

We employ various security measures to protect your information:

  • SSL/TLS encrypted transmission
  • Secure server infrastructure
  • Regular security audits and monitoring
  • Access control and permission management

5.2 Data Retention

  • Technical logs: Usually retained for 30-90 days
  • Analytics data: Anonymized and retained for long-term analysis
  • Local storage data: Managed by your browser, you can clear at any time

6. Your Rights and Choices

6.1 Access and Control

Since our service does not require registration, your control over data is mainly achieved through browser settings:

  • Clear local storage and cache
  • Disable JavaScript (may affect functionality)
  • Use private browsing mode

6.2 Opt-out Rights

You can stop using our services at any time, which will stop further data collection.

6.3 Contact Us

If you have questions about data processing or want to exercise your rights, please contact us.

7. Children's Privacy

Our services are not specifically designed for children under 13. We do not knowingly collect personal information from children under 13.

8. International Users

If you are accessing our services from outside our jurisdiction, please note that your information may be transferred to and processed in countries with different privacy laws.

9. Policy Changes

We may update this privacy policy from time to time. We will notify you of any material changes by posting the new privacy policy on this page.

10. Contact Information

If you have any questions about this privacy policy, please contact us through:

This privacy policy is effective as of June 2025.