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Liner

Privacy Policy

Last updated: June 26, 2026

Liner is a local music player. It plays the audio that is already on your device. We do not run accounts, we do not show ads, and we do not track you or sell data. This page explains exactly what the app does and does not do with your information.

The short version

01 Information we collect

Liner does not collect, store, or transmit any personal information to us. We have no servers, no database of users, and no way to identify you. We never see your library, your listening habits, or any usage data.

The app accesses the following only on your device:

None of this information leaves your device except as described in the next section.

02 Network use & third parties

Optional · can be turned off

To show synced lyrics and missing album art, Liner can look them up online. When this is enabled, the app sends a search query containing the song title and artist name (and sometimes album and track duration) to public music-metadata providers. No personal identifiers, accounts, or device IDs are attached to these requests.

Lyrics may be requested from:

Cover art may be requested from:

These are independent third-party services with their own privacy practices. Your network request (including your IP address, as with any internet request) is handled by them under their own policies. Liner has no affiliation with or control over these providers.

You can disable all online look-ups in Settings → Lyrics → Fetch lyrics online. With it off, the app makes no network requests and works entirely offline.

03 Permissions we request

Liner does not request access to your contacts, location, camera, microphone, or any other sensitive data.

04 Writing to your files

If you choose to embed lyrics (manually, or via the optional auto-embed setting), Liner writes those lyrics into the metadata tags of the relevant audio file on your device. This happens locally, only for files you act on, and only at your direction.

05 Data storage & security

All app data — your settings and the lyrics/artwork cache — is stored locally on your device in the app's private storage. Because nothing is sent to or held by us, there is no remote copy of your data to breach. Uninstalling the app removes this data. You can also clear the lyric cache at any time in Settings → Lyrics → Clear lyric cache.

06 Children's privacy

Liner does not knowingly collect any personal information from anyone, including children. The app contains no ads and no data collection.

07 Changes to this policy

If the app's behavior changes, this policy will be updated and the "Last updated" date above will change. Material changes will be reflected here before they take effect in a released version.

08 Contact

Questions about this policy or the app can be directed to the developer, Black.X: