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Privacy Policy (Muse App)

Last Updated: July 2, 2025

1. Collection of Personal Information

We collect personal information in the Muse application in the following cases:

• When downloading and installing the app
• When registering an account (including email, Spotify, Apple ID login)
• When linking with third-party services (Spotify, Apple)
• When making in-app purchases
• When setting up push notifications
• When contacting support

2. Types of Personal Information Collected

The Muse app collects the following personal information:

• Device identifiers (IDFA, Android ID, etc.)
• Device information (OS, model, language settings, etc.)
• App usage history
• Location information (only when permitted)
• Camera and microphone access (only when permitted)
• Contact information (only when permitted)
• Push notification tokens
• In-app purchase history
• Information via third-party authentication services:
  • Spotify: Username, profile information, music playback history
  • Apple ID: Username, email address, profile information

3. Device Permissions

This app may request the following permissions:

• Location: For providing location-based services
• Camera: For photo capture functionality
• Storage: For data storage
• Notifications: For sending push notifications

These permissions can be changed at any time from the settings screen.

4. Purpose of Use of Personal Information

We use the collected personal information for the following purposes:

• Providing and improving the application
• User authentication and account management
• Personalization features through integration with third-party services (Spotify, Apple)
• Customizing music experience and recommendations
• Providing customized content
• Sending push notifications
• Usage statistics and analysis
• Detecting and preventing unauthorized use
• Ad delivery and optimization
• Processing in-app purchases

5. Integration with Third-Party Services

This app uses the following third-party services, and their respective privacy policies apply:

• Authentication and Login Services:
  • Spotify (Music Streaming & Login) - Privacy Policy
  • Apple ID (Apple Login) - Privacy Policy
• Google Analytics (Usage Statistics) - Privacy Policy
• Firebase (Push Notifications & Authentication) - Privacy Policy
• Apple App Store / Google Play Store (In-app Purchases) - Apple / Google
• Ad delivery services (Personalized advertising) - Please refer to each service provider's privacy policy

5-1. Third-Party Authentication Services

Spotify Integration:

• Login functionality with Spotify account
• Retrieving music playback history (for personalization)
• Playlist information synchronization
• Analysis of favorite tracks

Apple ID Integration:

• Login functionality with Apple ID
• Retrieving basic profile information
• Email address anonymization option support
• Apple Music integration (where applicable)

Data Integration Control:

• Individual control of integration with each service from app settings
• Basic app functionality remains available after disconnection
• Integration data is properly encrypted and stored on our servers

6. Data Storage and Deletion

Personal information is stored only for the period necessary to achieve the purpose of use and is promptly deleted when no longer needed.

Even if you delete (uninstall) the app, some data may remain on our servers. If you wish for complete deletion, please request it through the following methods:

• Apply through "Settings" → "Delete Account" in the app
• Send a deletion request to support email ()
• Deletion requests are usually processed
• Third-party service integration data: Disconnecting integration with Spotify and Apple ID will stop new data collection

7. Data Retention Period

The retention period for personal information is as follows:

• Account information: Until account deletion
• App usage history: 2 years from last use
• Push notification tokens: Until app uninstall
• Purchase history: Legal retention period (7 years)
• Analytics data: Stored for statistical purposes after anonymization
• Third-party integration data:
  • Spotify data: Deleted
  • Apple ID data: Deleted

8. Advertising

This app uses third-party advertising services. These services may collect usage information from this app and other apps to display ads based on users' interests.

If you do not want personalized ads, you can change settings through the following methods:

• iOS: Settings → Privacy → Apple Advertising → Turn off Personalized Ads
• Android: Settings → Google → Ads → Turn off Ad Personalization
• In-app: Settings → Privacy → Ad Settings

9. Children's Privacy

This app is not intended for children under 13 years of age. We do not intentionally collect personal information from children under 13.

If we discover that we have collected personal information from a child under 13, we will promptly delete it. If parents notice this, please contact us immediately.

10. User Rights

Users have the following rights regarding personal information:

• Right of Access: You can request disclosure of your personal information held by us
• Right to Rectification: You can request correction of personal information
• Right to Erasure (Right to be Forgotten): You can request deletion of personal information
• Right to Restrict Processing: You can request restriction of personal information processing
• Right to Data Portability: You can request transfer of personal information to other services
• Right to Withdraw Consent: You can withdraw consent at any time

To exercise these rights, please contact us through the in-app contact form or the email address below.

11. Privacy Settings

Users can control the following items from the app's settings screen:

• Enable/disable push notifications
• Location information usage permission
• Ad personalization
• Participation in data analysis
• Cookie usage settings
• Data sharing settings with third-party services
• Music Service Integration:
  • Enable/disable Spotify integration
  • Enable/disable Apple Music integration
  • Music data synchronization settings
  • Playlist sharing settings

12. Legal Compliance

We handle personal information in compliance with the following laws and regulations:

• Japan: Act on Protection of Personal Information (APPI)
• Europe: General Data Protection Regulation (GDPR)
• United States: California Consumer Privacy Act (CCPA)
• Children: Children's Online Privacy Protection Act (COPPA)

Additional rights and protections may apply depending on your region.

13. International Data Transfers

This app provides services globally, and personal information may be processed in the following regions:

• Japan
• United States
• European Union
• Other regions with appropriate protection measures

For international transfers, we implement appropriate protection measures such as Standard Contractual Clauses (SCC) and adequacy decisions.

14. Contact

For privacy-related inquiries, please contact us at:

Email:
In-app: Settings → Support → Contact

Response Time: We will respond from your inquiry.

15. Changes to Privacy Policy

This privacy policy may be changed due to legal changes or app feature additions.

Notification Methods for Changes:

• Important changes: Prior notice via in-app notifications, push notifications, and email
• Minor changes: Display of update date within the app
• Change history: Available for review within the app

Continued use of the app after changes indicates acceptance of the new privacy policy.