Privacy Policy for LingvaLyrics

Last Updated: Diciembre 2025

Introduction

LingvaLyrics ("we," "our," or "us") is committed to protecting your privacy. This Privacy Policy explains how we collect, use, disclose, and safeguard your information when you use our mobile application LingvaLyrics (the "App").

By using our App, you agree to the collection and use of information in accordance with this policy.

Information We Collect

1. Account Information

When you create an account or sign in, we collect:

• Email address - Required for account creation and communication
• Display name - Optional, provided when using OAuth services (Google, Apple)
• Profile picture URL - Optional, provided when using OAuth services
• Authentication provider - Whether you signed in via Email, Google, or Apple
• Google ID - If you sign in with Google (for account linking)
• Subscription tier - Whether you have a Free or Premium subscription
• Trial information - If applicable, when your trial period ends

2. Usage Data

We collect information about how you use the App:

• Search history - Songs you search for (stored locally and on our servers)
• Song viewing history - Songs you view, including timestamps and view counts
• Saved songs - Songs you mark as favorites
• Personal dictionary - Words you save with their translations and context
• Favorite lines - Specific lines from songs you save
• Learning progress - Statistics including:
  • Words learned
  • Songs viewed
  • Daily streak
  • Total study time
• AI chat messages - Conversations with our AI language learning assistant
• AI usage limits - Tracking of AI feature usage for free and premium users

3. Device Information

We may collect limited device information:

• Device type - iOS or Android
• App version - For troubleshooting and support
• Push notification tokens - If you enable notifications (stored securely)

4. Content Data

When you use the App, we process:

• Song information - Titles, artists, lyrics, and translations you access
• YouTube video IDs - To display synchronized subtitles and karaoke
• Translation requests - Words and phrases you translate
• Language preferences - Your selected learning and interface languages

How We Use Your Information

We use the collected information for the following purposes:

1. App Functionality

• Account management - Creating and maintaining your account
• Personalization - Providing personalized song recommendations and learning content
• Feature delivery - Enabling core features like:
  • Song search and playback
  • Synchronized lyrics and karaoke
  • Word translations and dictionary
  • AI chat assistant
  • Learning games and exercises
• Progress tracking - Tracking your learning progress and statistics
• Offline functionality - Caching songs and translations for offline use

2. Service Improvement

• Analytics - Understanding how users interact with the App to improve features
• Performance monitoring - Identifying and fixing bugs and performance issues
• Feature development - Developing new features based on usage patterns

3. Communication

• Account notifications - Sending important account-related information
• Push notifications - Sending daily reminders and learning tips (if enabled)
• Support - Responding to your support requests

4. Legal Compliance

• Legal obligations - Complying with applicable laws and regulations
• Fraud prevention - Detecting and preventing fraudulent activity

Third-Party Services

We use the following third-party services that may collect or process your information:

1. Authentication Services

• Supabase Auth - Handles email/password and Apple Sign In authentication
  • Privacy Policy: https://supabase.com/privacy
  • Data stored: Authentication tokens, user IDs
• Google OAuth - Handles Google Sign In authentication
  • Privacy Policy: https://policies.google.com/privacy?hl=en
  • Data collected: Email, name, profile picture (with your consent)

2. Translation and Language Services

• DeepL API - Provides word and phrase translations
  • Privacy Policy: https://www.deepl.com/privacy
  • Data processed: Words and phrases you translate (not stored by DeepL)
• OpenAI / OpenRouter API - Powers AI chat assistant and extended word translations
  • Privacy Policy: https://openai.com/privacy
  • Data processed: Your chat messages and translation requests (for service delivery)

3. Content Services

• YouTube Data API v3 - Provides song search, video metadata, and subtitles
  • Privacy Policy: https://policies.google.com/privacy?hl=en
  • Data processed: Song search queries, YouTube video IDs
• Genius API - Provides song lyrics
  • Privacy Policy: https://genius.com/static/privacy_policy
  • Data processed: Song titles and artists for lyrics retrieval

4. Infrastructure Services

• PostgreSQL Database - Stores your account data and usage information
  • Hosted on our secure servers
  • Data encrypted in transit and at rest
• Redis - Caches frequently accessed data for performance
  • Data stored temporarily and automatically expired

Data Storage and Security

Storage Location

Your data is stored on secure servers. We use industry-standard security measures to protect your information:

• Encryption - Data is encrypted in transit (HTTPS/TLS) and at rest
• Access controls - Limited access to your data on a need-to-know basis
• Regular backups - Your data is regularly backed up to prevent loss

Data Retention

We retain your information for as long as necessary to provide our services:

• Account data - Retained while your account is active
• Usage data - Retained to provide personalized features and improve the service
• Deleted accounts - Data is deleted within 30 days of account deletion

You can request deletion of your data at any time (see "Your Rights" section below).

Data Sharing and Disclosure

We do not sell your personal information. We may share your information only in the following circumstances:

1. Service Providers

We share data with trusted third-party service providers who help us operate the App:

• Cloud hosting providers
• Analytics services (anonymized data only)
• Customer support tools

These providers are contractually obligated to protect your data and use it only for the purposes we specify.

2. Legal Requirements

We may disclose your information if required by law or in response to valid legal requests:

• Court orders or subpoenas
• Government investigations
• Protection of our rights or safety

3. Business Transfers

If we are involved in a merger, acquisition, or sale of assets, your information may be transferred as part of that transaction.

Your Rights

Depending on your location, you may have the following rights regarding your personal information:

1. Access

You can access your personal data through the App:

• View your profile information
• See your learning progress and statistics
• Access your saved words and favorite lines

2. Correction

You can update your account information:

• Change your display name
• Update your email address (via account settings)
• Modify your language preferences

3. Deletion

You can request deletion of your account and data:

• Delete your account through the App settings
• Contact us to request data deletion
• We will delete your data within 30 days of your request

4. Data Export

You can request a copy of your data:

• Contact us to request your data export
• We will provide your data in a machine-readable format within 30 days

5. Opt-Out

You can opt out of certain data collection:

• Disable push notifications in App settings
• Limit location data (if collected in future versions)
• Contact us to opt out of analytics (may affect app functionality)

6. Withdraw Consent

You can withdraw your consent for data processing:

• Delete your account
• Stop using the App
• Contact us to revoke specific consents

Children's Privacy

LingvaLyrics is an educational app that can be used by learners of all ages. We do not require age verification during account creation and do not collect age information from our users.

Parents and guardians are encouraged to supervise their children's use of the App. If you are a parent or guardian and have concerns about your child's use of LingvaLyrics, please contact us.

International Data Transfers

Your information may be transferred to and processed in countries other than your country of residence. These countries may have different data protection laws than your country.

By using our App, you consent to the transfer of your information to these countries. We ensure appropriate safeguards are in place to protect your data in accordance with this Privacy Policy.

California Privacy Rights

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

• Right to know - Request information about what personal information we collect, use, and disclose
• Right to delete - Request deletion of your personal information
• Right to opt-out - Opt out of the sale of personal information (we do not sell your data)
• Non-discrimination - We will not discriminate against you for exercising your privacy rights

To exercise these rights, please contact us.

European Privacy Rights (GDPR)

If you are located in the European Economic Area (EEA), you have additional rights under the General Data Protection Regulation (GDPR):

• Right of access - Obtain confirmation of whether we process your data and access to that data
• Right to rectification - Request correction of inaccurate or incomplete data
• Right to erasure - Request deletion of your data under certain circumstances
• Right to restrict processing - Request limitation of how we process your data
• Right to data portability - Receive your data in a structured, machine-readable format
• Right to object - Object to processing of your data for certain purposes
• Right to withdraw consent - Withdraw consent for data processing at any time

To exercise these rights, please contact us.

Changes to This Privacy Policy

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

• Posting the new Privacy Policy on this page
• Updating the "Last Updated" date
• Sending you an email notification (if you have provided an email)
• Showing a notification in the App

You are advised to review this Privacy Policy periodically for any changes. Changes are effective when posted on this page.