Privacy Policy

Effective date: September 16, 2026

1. Information We Collect

SixStrings has no user accounts. We collect only what is needed to make the app work:

Device identifier: On first launch the app generates a random identifier (a UUID) and stores it on your device. It is sent with requests to our server so that the playlists and songs you create are attributed to your device. It is not derived from hardware identifiers, is not linked to your name, email or phone number, and is not shared with third parties.
Content you create: Playlists, event set lists and songs you write in the app are stored on our server so they can be shared by link or shown as public events. Only content you explicitly mark as public or share by link is visible to other users.
Search queries: When you search for songs, your query is sent to our server to fetch chord and lyric data. Queries are not linked to your device identifier for analysis; they may appear in short-lived server access logs that are deleted automatically.
Audio: Microphone input for chord detection and tuning is processed entirely on your device. Looper recordings are saved only on your device. No audio is ever transmitted to our server.
Preferences: App settings (theme, language, favorites, recent songs) are stored locally on your device.

2. Voice Search

Voice search uses your device's built-in speech recognition (Apple Speech on iOS, Google speech services on Android). Voice data is processed by the platform provider according to its own privacy policy. We do not receive or store voice recordings.

3. Data Storage and Security

All communication between the app and our server is encrypted in transit (HTTPS). Server-side data is stored in the European Union. Favorites, recent songs, settings and looper projects never leave your device.

4. Deleting Your Data

To delete everything the Sixstrings server holds for your device:

Open the app and go to Settings → Privacy.
Tap “Delete my data from the server” and confirm.

This immediately and permanently removes the playlists, event set lists and songs you created, and the device identifier itself; the app then generates a new identifier, so nothing can link you to the deleted data. Songs you submitted that were already accepted into the shared catalog remain as catalog content, without any link to your device. Favorites, recent songs, settings and looper recordings are stored only on your phone and are not affected — uninstalling the app removes them.

You can also delete any single playlist, event or song inside the app, or email [email protected] and we will delete your data for you. Server access logs, which contain no device identifier, are rotated automatically after 14 days.

5. Third-Party Services

The app connects to our own server to fetch chord and lyric data from public chord databases. We do not use advertising, analytics or crash-reporting SDKs, and we do not sell or share data with third parties.

6. Children's Privacy

SixStrings does not knowingly collect information from children under 13. The app does not require any personal information to function.

7. Changes to This Policy

We may update this Privacy Policy from time to time. Changes will be posted on this page with an updated effective date.

8. Contact Us

If you have questions about this Privacy Policy, please contact us at [email protected].