Privacy Policy

Last Updated: December 2024

At DuaLyric, we are committed to protecting your privacy and ensuring the security of your personal information. This Privacy Policy explains how we collect, use, disclose, and safeguard your information when you use our iOS mobile application.

1. Information We Collect

1.1 Information You Provide

• Apple Music Authorization: We request access to your Apple Music account to enable music playback and search functionality.
• Search Queries: Song and artist search terms you enter to find music content.
• Learning Preferences: Quiz settings and language learning preferences you configure in the app.

1.2 Automatically Collected Information

• Usage Data: Information about how you interact with the app, including songs played, quiz completion rates, and feature usage.
• Device Information: iOS version, device model, and app version for compatibility and troubleshooting purposes.
• Audio Data: When using the "Explain Last Lines" voice feature, temporary audio data is processed for real-time explanations but is not stored.

1.3 Third-Party Service Data

• Apple MusicKit: Music catalog access, playback controls, and user authorization status.
• Lyrics Data: Song lyrics fetched from lrclib.net for educational purposes.
• AI Processing: Text sent to OpenAI services for translation and quiz generation (lyrics content only, no personal information).

2. How We Use Your Information

We use the collected information for the following purposes:

• Core Functionality: Providing music playback, synchronized lyrics display, and language learning features.
• AI-Powered Features: Generating translations, comprehension quizzes, and voice explanations of Spanish lyrics.
• Personalization: Remembering your quiz preferences and learning progress.
• App Improvement: Analyzing usage patterns to enhance user experience and fix bugs.
• Customer Support: Responding to your inquiries and providing technical assistance.

3. Information Sharing and Disclosure

3.1 Third-Party Services

We share limited information with the following third-party services:

• Apple Music: Your Apple ID and music preferences for authorized playback.
• OpenAI: Song lyrics (without personal identifiers) for AI translation and quiz generation.
• lrclib.net: Song metadata (title, artist, album) to fetch synchronized lyrics.

3.2 We Do Not Sell Your Data

We do not sell, trade, or otherwise transfer your personal information to third parties for commercial purposes.

3.3 Legal Requirements

We may disclose your information if required by law, court order, or to protect our rights and safety.

4. Data Security

We implement appropriate security measures to protect your information:

• Encryption: All data transmission is encrypted using industry-standard protocols.
• Secure Storage: User preferences are stored securely on your device using iOS security features.
• API Security: All third-party API communications use secure, authenticated connections.
• No Permanent Audio Storage: Voice explanations are processed in real-time and not permanently stored.

5. Your Privacy Rights

You have the following rights regarding your personal information:

• Access: Request information about the data we collect and how it's used.
• Correction: Update or correct your information through app settings.
• Deletion: Request deletion of your data by contacting us or uninstalling the app.
• Opt-Out: Disable specific features like quizzes or voice explanations at any time.
• Apple Music Revocation: Revoke Apple Music access through iOS Settings at any time.

6. Children's Privacy

DuaLyric is intended for users aged 13 and older. We do not knowingly collect personal information from children under 13. If you are a parent or guardian and believe your child has provided us with personal information, please contact us immediately.

7. International Data Transfers

Your information may be transferred to and processed in countries other than your country of residence, including the United States, where our third-party service providers (OpenAI) are located. We ensure appropriate safeguards are in place for such transfers.

8. Changes to This Privacy Policy

We may update this Privacy Policy from time to time. We will notify you of any material changes by:

• Posting the updated policy on our website
• Displaying a notification in the app
• Sending you an email if we have your contact information

Your continued use of the app after changes are posted constitutes acceptance of the updated policy.

9. Data Retention

We retain your information only as long as necessary to provide our services and comply with legal obligations:

• User Preferences: Stored locally on your device until you uninstall the app or reset settings.
• Usage Analytics: Aggregated and anonymized data may be retained for service improvement.
• Support Communications: Retained for a reasonable period to provide ongoing support.

10. California Privacy Rights

If you are a California resident, you have additional rights under the California Consumer Privacy Act (CCPA):

• Right to know what personal information is collected
• Right to delete personal information
• Right to opt-out of the sale of personal information (we do not sell your information)
• Right to non-discrimination for exercising your privacy rights

This Privacy Policy is effective as of the date listed above and applies to all users of the DuaLyric mobile application.