Alter Music — Privacy Policy

Last updated: 28 September 2026

Alter Music ("the app") is a private, self-hosted music and audiobook player for a small, invited group of household members. It connects only to a private server operated by the person who runs the household deployment ("the operator"). This policy explains what the app handles and how.

What the app handles

• Account details — your username and display name on the household server.
• Device access — a per-device access token issued when you enroll a device, plus the device's model/name so it can be identified and managed.
• Your activity — the music and audiobooks you play, ratings, playlists, your library, and your current playback position (used to sync playback across your own devices and to build features like recently-played and weekly discovery).
• Diagnostics you choose to send — if you tap "Send logs," a local playback log is uploaded to the operator's server to help troubleshoot a problem. This is never automatic.

How it is used

Solely to provide the service to you and your household: streaming your library, syncing playback between your devices, and personal features like recommendations. The app shows no advertising and contains no third-party analytics, tracking, or advertising software.

Where it is stored

Your data lives on the operator's private, self-hosted server, not on any third-party cloud service. Network traffic between the app and that server is encrypted (HTTPS) and may pass through a content-delivery tunnel (Cloudflare) purely to reach the server; that traffic is encrypted in transit.

Sharing

Your data is not sold and not shared with third parties. It stays within the household deployment. Other household members do not see your personal activity; the shared music library is, by design, common to the household.

Your controls

• You can sign out a device at any time, which stops its access.
• The operator can revoke any device's access and can delete your account and its associated data on request; deleting an account removes its library pointers, playlists, and activity from the server.

Children

The app is intended for the operator's invited household members and is not directed to children under 13.

Changes

If this policy changes, the updated date above will change and the current version will always be available at this address.

Contact

Questions about this policy or your data: contact the operator at [email protected].