PhaseShift

PhaseShift is a high-fidelity, offline music player for people who keep their own music. Play FLAC, ALAC, WAV, AIFF and DSD up to 768kHz / 32-bit through a custom audio engine, with gapless playback, a multi-band EQ, ReplayGain, desktop-class tag editing and encrypted device sync — all on iPhone, iPad and Mac. No ads, no accounts, no tracking.

Streaming services decide what you can hear, recompress it to save bandwidth, and watch what you play. PhaseShift takes the opposite approach: it runs entirely on your device with no account, no ads, no tracking and no subscription. You bring your own files — the lossless rips, the hi-res downloads, the DSD transfers — and PhaseShift gives them studio-grade playback alongside library tools you usually only find on the desktop.

At the core is a custom AVAudioEngine pipeline built for bit-perfect output. PhaseShift plays FLAC, ALAC, WAV, AIFF, MP3, AAC and more up to 768kHz / 32-bit, handles native DSD (DSF/DFF) with DoP output, and confirms a no-resampling path straight to your DAC. Gapless playback, crossfade, a 10-band graphic EQ with a safety preamp, ReplayGain loudness matching, crossfeed, headphone correction, CUE sheet support and a sleep timer round out a player tuned for people who care how their music actually sounds.

Around the player is a real music library: browse by songs, albums, artists, playlists and folders; preserve the folder structure you already use or let PhaseShift organize future imports by Artist/Album; build smart playlists with a full rule editor; import and export M3U and PLS; and keep ratings, play counts and listening history that feed private, on-device stats and a year-in-review. Desktop-class tag editing lets you fix ID3, MP4 and Vorbis/FLAC metadata — including batch edits and regex find-and-replace across hundreds of files — and write changes straight back into your files.

Your music stays yours. Wi-Fi Transfer brings in individual files or entire folder trees from any browser on your network, WebDAV and SMB import reach your network drives, and Mac users can either copy music into PhaseShift or play it in place from its existing folder. A unified Music Folder browser labels copied and referenced items, while reconnection and full-rescan tools keep external libraries available. Encrypted, paired Library Sync moves your collection, artwork, playlists, ratings and history between your own devices. In PhaseShift 1.5, each sub device can mirror the whole library or only selected artists and playlists, with its own preferred audio-quality tier. Full backup and restore, AirPlay output and an Apple Watch companion finish the picture. PhaseShift collects nothing — there are no analytics, no advertising identifiers and no accounts, and network access is used only for the features you turn on, always encrypted and gated by a PIN or pairing code.