Privacy Policy for Melos
Last Updated: July 20, 2025
1. Introduction
Welcome to Melos ("we," "us," or "our"). We are committed to protecting your privacy. This Privacy Policy explains how we collect, use, disclose, and safeguard your information when you use our mobile application, Melos (the "Application"). Please read this privacy policy carefully. If you do not agree with the terms of this privacy policy, please do not access the Application.
We reserve the right to make changes to this Privacy Policy at any time and for any reason. We will alert you about any changes by updating the "Last Updated" date of this Privacy Policy. You are encouraged to periodically review this Privacy Policy to stay informed of updates.
2. Information We Collect
We may collect information about you in a variety of ways. The information we may collect via the Application depends on the content and materials you use, and includes:
2.1. Personal Data You Provide to Us
- Account Information: When you register for an account, we collect your email address. This information is associated with your unique user ID.
- Authentication Information (Third-Party Sign-In):
- If you choose to log in or sign up using Google, we will receive information from Google such as your name, email address, and profile picture, as permitted by Google and your Google privacy settings. This is facilitated via an ID Token.
- If you choose to log in or sign up using Apple (on iOS devices), we will receive information from Apple such as your name and email address (which may be a private relay email), as permitted by Apple and your Apple ID settings. This is facilitated via an Identity Token and a nonce for security.
- User-Generated Content: If you create playlists, we collect the playlist name and description you provide.
2.2. Usage Data and Automatically Collected Information
- Song Interaction Data: We collect information about your interactions with songs and albums, including:
- Songs you "like" (
song_likes).
- Your listening history, including albums played and when they were last played (
user_listening_history).
- Learning Progress: We track your progress within the Application, including quiz scores (last score, highest score, total questions attempted) for songs (
user_song_progress) and your daily activity to maintain your learning streak.
- Analytics and Usage Data: To understand how you interact with our Application, we use Mixpanel, a third-party analytics service. This includes tracking events such as screens viewed, buttons tapped, songs played, quiz performance, session duration, and other user interactions. This helps us improve app features and functionality.
- Subscription and Purchase Information: To manage premium subscriptions, we use RevenueCat and Superwall. When you make a purchase, RevenueCat processes the transaction through the Apple App Store or Google Play Store and provides us with information about your subscription status (e.g., active, expired) and entitlement level. We do not receive or store your credit card information.
- Advertising Data: For our free users, we display advertisements provided by Google AdMob. To serve relevant ads, Google may collect and use data, including your device's advertising identifier (IDFA for iOS, AAID for Android). On iOS, we will ask for your permission to track via the App Tracking Transparency (ATT) framework before this identifier is used. You can manage your ad preferences in your device settings.
- Device and Connection Information: Like most mobile applications, we may collect standard device information (such as device type, operating system version) and network information (such as IP address, network status via NetInfo) automatically through our backend provider (Supabase) and for the proper functioning of the Application.
2.3. Information from Third Parties
We use Supabase as our backend service provider, which handles authentication, database storage, and file storage. Supabase may collect information as described in their privacy policy when you use our Application.
When you use Google Sign-In or Apple Sign-In, these services provide us with the authentication tokens and profile information mentioned in section 2.1.
3. How We Use Your Information
Having accurate information about you permits us to provide you with a smooth, efficient, and customized experience. Specifically, we may use information collected about you via the Application to:
- Create and manage your account.
- Authenticate your access to the Application, including via email OTP, Google, and Apple.
- Provide and deliver the core services of the Application, such as displaying lyrics, playing music, and offering language learning features.
- Personalize your experience by showing your liked songs and listening history.
- Track your learning progress, display quiz scores, and manage your educational journey within the app.
- Monitor and analyze usage and trends via analytics to improve your experience and the Application's performance.
- Display relevant advertisements to free users to support the Application.
- Process transactions and manage your premium subscription.
- Respond to your requests and provide customer support.
- Ensure the security and integrity of our Application.
- Comply with legal obligations.
4. How We Share Your Information
We do not sell your personal information. We may share information we have collected about you in certain situations. Your information may be disclosed as follows:
- By Law or to Protect Rights: If we believe the release of information about you is necessary to respond to legal process, to investigate or remedy potential violations of our policies, or to protect the rights, property, and safety of others, we may share your information as permitted or required by any applicable law, rule, or regulation.
- Third-Party Service Providers: We share your information with our third-party vendors to perform services for us and on our behalf. This includes:
- Supabase: Our backend service provider for database, authentication, and storage.
- Mixpanel: For analytics and understanding user engagement.
- RevenueCat & Superwall: For managing in-app purchases, subscriptions, and paywalls.
- Google AdMob: For serving advertisements to our free users.
These third parties will only receive the information necessary to perform their designated functions and are obligated to maintain the confidentiality and security of that information.
- Business Transfers: We may share or transfer your information in connection with, or during negotiations of, any merger, sale of company assets, financing, or acquisition of all or a portion of our business to another company.
5. Data Storage and Security
We, through our service provider Supabase, use administrative, technical, and physical security measures to help protect your personal information. While we have taken reasonable steps to secure the personal information you provide to us, please be aware that despite our efforts, no security measures are perfect or impenetrable.
Your information is stored on Supabase servers, which may be located in various regions globally. Supabase implements industry-standard security practices.
Locally on your device, we use secure, encrypted on-device storage (MMKV) to store your audio playback settings and answers from the initial onboarding questionnaire before you create an account.
6. Data Retention
We will retain your personal information for as long as your account is active or as needed to provide you services, comply with our legal obligations, resolve disputes, and enforce our agreements. Data related to your learning progress, likes, and playlists will be retained as long as your account exists. If you delete your account, we will take reasonable steps to delete your personal information in accordance with our data deletion processes.
7. Your Data Rights and Choices
Depending on your location, you may have certain rights regarding your personal information. These may include the right to access, correct, or delete your personal information. You can permanently delete your account and associated personal data at any time through the 'Delete Account' option in the Profile screen of the Application.
To exercise any other rights, please contact us at support@mymelos.com. We will respond to your request within a reasonable timeframe and in accordance with applicable laws.
You can manage your Google and Apple account information and privacy settings through their respective platforms.
8. Children's Privacy
Melos is not intended for use by children under the age of 13 (or 16 in certain jurisdictions). We do not knowingly collect personal information from children under these ages. If we become aware that we have collected personal information from a child under the relevant age without parental consent, we will take steps to delete that information.
9. Third-Party Services and Links
The Application uses third-party services for its functionality, as detailed below:
We are not responsible for the privacy practices of these third-party services. We encourage you to review their privacy policies.
10. Contact Us
If you have questions or comments about this Privacy Policy, please contact us at:
support@mymelos.com