Last updated: September 13, 2026

Ansuz is a music player for macOS developed by Master Solutions SRL. This policy explains what the app does with your data. The short version: Ansuz has no servers, no accounts of its own, no analytics and no advertising. Everything it stores stays on your Mac.

Data stored on your Mac

Ansuz reads the audio files in the folders you choose and keeps an index of their metadata (titles, artists, albums, durations, play counts, ratings, playlists and listening history) in its own application container. It also caches album artwork, lyrics and artist information it has looked up. This data never leaves your Mac unless you use one of the optional services below, and it is deleted when you delete the app.

Ansuz never modifies your music files unless you explicitly enable the tag editor in Settings › Library and save changes yourself.

Optional online services

Ansuz contacts third-party services only to perform an action you request. None of them receive your name, email or any identifier from Ansuz beyond what is described here.

• Last.fm (scrobbling). Only if you connect your Last.fm account in Settings. Ansuz then sends the title, artist, album and time of each song you listen to, to your own Last.fm account, and asks Last.fm for similar tracks and artist information. Your Last.fm session key is stored in the macOS Keychain. Disconnecting in Settings stops all of this immediately. Last.fm's privacy policy: https://www.last.fm/legal/privacy.
• AcoustID and MusicBrainz (identification). Only when you choose "Identify" for a song or your library. Ansuz sends an acoustic fingerprint (a numeric summary of the audio, not the audio itself) and its duration to AcoustID, and looks up matches on MusicBrainz. Privacy policies: https://acoustid.org/privacy, https://metabrainz.org/privacy.
• Cover Art Archive, LRCLIB, MusicBrainz, Wikidata and Wikipedia. Ansuz queries these public services with the artist, album or song title to fetch artwork, lyrics, biographies and the artist’s official website and social profiles. They receive only that text and your IP address, like any web request.
• Ticketmaster and Bandsintown (upcoming shows). When you open the artist panel, Ansuz asks these services for that artist’s announced concerts, sending only the artist name. Privacy policies: https://privacy.ticketmaster.com/privacy-policy, https://corp.bandsintown.com/privacy.
• Discogs (artist profiles). Only if you paste a personal Discogs token in Settings. Ansuz then sends the artist name to Discogs to fetch the artist’s profile, links and photo, using your token. The token is stored in the macOS Keychain and removed when you disconnect. Discogs’ privacy policy: https://www.discogs.com/privacy.
• Apple Music. Only if you connect it in Settings. Ansuz then uses Apple’s MusicKit with your Apple ID to read your Apple Music playlists, search the catalog, create playlists in your Apple Music library and, with a subscription, play music. These requests go to Apple under Apple’s privacy policy: https://www.apple.com/legal/privacy/. Ansuz stores no Apple credentials; you can revoke access in System Settings › Privacy & Security › Media & Apple Music.
• Spotify. Only if you connect it in Settings. Ansuz then sends you to Spotify’s own login page (it never sees your password), and with the resulting token reads your Spotify playlists, searches the catalog and creates playlists in your account. Tokens are stored in the macOS Keychain and deleted when you disconnect. Spotify’s privacy policy: https://www.spotify.com/legal/privacy-policy/.
• TIDAL. Only if you connect it in Settings. Ansuz then sends you to TIDAL’s own login page (it never sees your password), and with the resulting token reads the playlists you own, searches the catalog and creates playlists in your account. Tokens are stored in the macOS Keychain and deleted when you disconnect. TIDAL’s privacy policy: https://tidal.com/privacy.

Ansuz identifies itself to these services with its name and version (the standard User-Agent header). It does not use tracking identifiers, cookies or advertising SDKs.

Data we collect

Master Solutions SRL does not collect, receive or store any data from Ansuz users. We cannot see your library, your listening history or your settings.

Children

Ansuz is not directed at children and collects no personal information from anyone.

Changes

If this policy changes, the new version will be published at the same address with a new date.

Contact

Master Solutions SRL — alberto.yuale@gmail.com