Privacy Policy

1. Overview

Tempo Tunes ("we", "our", or "the app") is a music playlist generator that builds playlists by tempo (BPM) and genre. This privacy policy explains how we collect, use, and protect your information when you use our mobile app or website.

2. Information We Collect

We collect the following types of information:

• Account information: When you create an account (email/password, Sign in with Google, or Sign in with Apple), we store your email address and display name via Supabase Auth.
• Session data: When you sign in, we create a session token and store it, along with your account identifier, in our database so you stay signed in across app restarts. Sessions are deleted when you log out or delete your account.
• Music service connections (optional, where available): If you connect Spotify, we access your Spotify profile (display name, email, profile image) and create playlists on your behalf; we store the access tokens needed to do this, never your Spotify password. If you connect Apple Music, we store a music user token that lets us create playlists in your Apple Music library. If you connect Tidal or YouTube Music, we store the OAuth tokens needed to create playlists in that account on your behalf — never your password. Playlists generated without a connected music service are built from our own tempo database and saved only on your device.
• Profile photo: If you choose to set a custom profile picture, we store it locally on your device only.
• Playlist history: We store a local history of playlists you create (names, tracks, track counts) on your device for your convenience.

3. How We Use Your Information

We use your information to: (a) authenticate you and manage your account; (b) generate playlists by tempo and genre; (c) where you have connected a music service, create and add tracks to playlists in that account; and (d) improve our service. We do not sell your data to third parties, and we do not use your data for advertising.

4. Third-Party Services

We use Supabase for authentication and data storage, Render to host our API, and (optionally, where you connect them) Spotify, Apple Music, Tidal, and YouTube Music for playlist creation, plus Google and Apple for sign-in. Each has its own privacy policy. Song tempo data comes from our own database and public music catalogs, not from your personal listening history.

YouTube API Services: Tempo Tunes uses YouTube API Services to provide the "Save to YouTube Music" feature. By using this feature you agree to the YouTube Terms of Service, and our handling of information received from YouTube API Services is subject to the Google Privacy Policy. We use this access only to create playlists in your own YouTube account and add the songs you chose; we do not read, store, or share any other YouTube account data. You can revoke Tempo Tunes' access to your Google account at any time via the Google security settings page.

5. Data Retention

We retain your account and session data until you delete your account. You may delete your account at any time from the Profile tab in the app; this removes your account, sessions, and associated data from our systems. Playlists created in a connected music service (such as Spotify or Apple Music) remain in that account until you delete them there, and playlists saved on your device remain until you remove them or uninstall the app.

6. Data Security

Account authentication is handled by Supabase Auth; we never see or store your password in plain text, and music service connections use OAuth tokens rather than passwords. All communication between the app and our servers uses HTTPS encryption. While no method of transmission or storage is completely secure, we limit the data we collect to what the app needs to function.

7. Children's Privacy

Tempo Tunes is not directed at children under 13 (or the equivalent minimum age in your jurisdiction), and we do not knowingly collect personal information from children. If you believe a child has created an account, please contact us and we will delete the account and its data.

8. Your Rights

You can access, correct, or delete your account data through the app. For account deletion, use the "Delete Account" option in your profile. If you have questions, contact us at the email provided in the app store listing.

9. Changes

We may update this privacy policy from time to time. We will notify you of significant changes by updating the "Last updated" date. Continued use of the app after changes constitutes acceptance.

10. Contact

For privacy-related questions, please contact us through the support channel listed in the App Store or Google Play listing for Tempo Tunes.