Privacy Policy

Ghost Music Player is engineered under an uncompromising principle: your local audio library and personal listening habits belong solely to you. Our architecture guarantees that we are technically incapable of accessing, uploading, copying, or monitoring your audio files. All audio indexing, playlist generation, and media playback execute strictly on your local device hardware.

Because we do not harvest or store any user profiles or audio files on remote servers, we cannot share, monetize, or disclose your personal information to third parties.

All intelligent machine learning and digital signal processing (DSP) features run 100% offline on your device's physical processor:

• UVR-MDX-Net Vocal Stem Isolation: Real-time and batch extraction of vocals and instrumentals executes directly on your device CPU/GPU using embedded ONNX Runtime inference (onnxruntime_v2). Audio files are never transmitted to any cloud servers for processing.
• YAMNet Audio & Genre Classifier: Local neural network classification scans audio features across 521 acoustic categories entirely offline to organize your collection without internet dependencies.
• Smart Playlists & Recommendations: Listening routines, skips, and favorite track recommendations are computed strictly from local usage records saved in an encrypted on-device database (SQLite & ObjectBox).
• Sing & Rehearsal Studio: Vocal recording runs locally through low-latency audio capture. Recorded rehearsals and takes are saved exclusively to your device storage and are never uploaded or analyzed externally.
• 10-Band Studio Equalizer & DSP: Frequency adjustments, Bass Boost, and 3D Virtualizer utilize Android's hardware AudioEffect DSP APIs directly on your device.

To deliver interactive, synchronized lyrics while preserving absolute privacy, Ghost Music Player utilizes minimal, privacy-respecting query flows:

• Synchronized Lyrics (LRCLIB): When an internet connection is available, the app can query the public open-source LRCLIB database using only anonymous metadata tags (Track Title, Artist Name, and Duration). Raw audio data is never uploaded.
• Google ML Kit Offline Translation: Language detection and line-by-line lyrics translations execute locally on your device using on-device ML Kit models. Once language packs are downloaded, translation operates 100% offline without communicating with translation servers.

Ghost Music Player collects zero telemetry or personal records from your device:

• No user accounts, emails, phone numbers, or registration tokens.
• No track listings, listening duration, search queries, or skips.
• No audio fingerprints, voice recordings, or microphone inputs uploaded to any server.
• No Analytics or Telemetry SDKs: We do not integrate Firebase Analytics, Facebook SDK, Sentry, or third-party tracking frameworks. Standard OS crash diagnostics remain managed strictly by Google Play Services if you have opted in at the operating system level.

The following system permissions are declared in the application manifest to support audio playback, background processing, and local features:

When fetching synchronized lyrics online, interactions are subject to the policies of the public database:

• LRCLIB: Open-source lyrics repository used to fetch time-synced song text via anonymous metadata queries: LRCLIB Privacy Policy.

Because all listening records, playlists, recordings, and cached lyrics are stored locally on your device, you have total sovereign control over your data. You can delete all application data and cache at any time via Android system settings:

For support queries, bug reports, or feature recommendations:

We may update this Privacy Policy from time to time to reflect enhancements in local AI features, engine improvements, or regulatory updates. Any changes will be published here with an updated effective date.

Your continued use of Ghost Music Player signifies your acceptance of these terms.