MOOSIC Player

MOOSIC

MOOSIC is a native music player for macOS and iOS, written in Swift and SwiftUI with a strong focus on performance, ownership, and long-term maintainability.

Unlike many modern players, MOOSIC is built as a fully native app — no web UI, no Electron, no cloud lock-in. Your music lives on your own disks, your own NAS, and your own iCloud.

What Makes It Different

• Native Swift + SwiftUI – one codebase for macOS and iPhone/iPad, with Liquid Glass, fast startup and low resource use
• Virtual File System (VFS) – play music directly from local disks and network shares
• First-class network sources – stream from SMB/CIFS, SFTP, FTP and WebDAV without copying files
• Offline-first – your library lives locally, always accessible; only your own iCloud syncs it across devices
• Best-possible native sound – an AVAudioEngine pipeline with a real equalizer, spatial audio, and gapless playback

Supported Audio Formats

MOOSIC plays the formats you actually own:

• .mp3 · .aac · .m4a · .alac · .flac · .wav · .aiff · .ogg · .opus

Playback is powered by a native AVAudioEngine pipeline — CoreAudio decoders with vendored libogg / libvorbis / libopus. No transcoding, no temp files, streamed straight from local or remote storage.

Core Capabilities

• Fast SQLite library with SHA-256 track identity and dedup, live play stats and a cover-art cache
• Smart playlists – built-ins (Most Played, Recently Played, Never Played…) plus fully custom rule sets
• Ratings and a powerful filter grammar – rating:>=4, plays:>10, quoted terms, negation, and Cmd-K fuzzy jump
• Tag editing with write-back to ID3 / FLAC / MP4 — locally and over the network
• MusicBrainz enrichment – manual, batch, or scheduled background matching
• Internet radio via Radio Browser, with favorites, recents and station playlists
• Gapless + crossfade playback, a switchable spectrum visualizer, and offline playlists (download tracks for playback with no network)

Music Discovery & Downloads

MOOSIC includes a full Soulseek client for finding and downloading music directly into your library.

• Search the Soulseek network and browse a user's shared folders
• Queue whole folders; transfers resume after interruptions and auto-import into your library
• NAT traversal (racing direct and indirect peer connections) for reliable downloads behind a router

The Mac/iOS App Store editions ship without Soulseek; the direct download includes it.

Network & Security Focus

MOOSIC is built to reach your own machines and keep your data yours:

• Stream directly from SMB/CIFS, SFTP, FTP and WebDAV with automatic reconnection
• Source credentials are stored in the system Keychain, never in plaintext
• Library sync uses your private iCloud (key-value store), encrypted by Apple — no third-party server
• No proprietary servers, no telemetry, no forced accounts

Current Status

MOOSIC is under active development and already usable for daily playback on macOS. A notarized build is available for direct download, and the iOS and macOS App Store editions are in preparation.

It is a native rewrite of AnotherPlayer, rebuilt from the ground up for Apple platforms — the same philosophy on a new foundation.

It is software for users who still care how their tools work, not just how they look.