PhaseShift vs Attune
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PhaseShift
A private, high-fidelity music player for your owned music collection. Import and organize your audio files, enjoy detailed playback features, and customize your listening experience without ads or tracking.
- Import music from various sources
- Organize and customize library
- High-fidelity audio playback
- Customizable playback controls
- Create and edit playlists
- Sync library across devices
- Offline functionality
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PhaseShift is a private, high-fidelity music player built for the music you own. Import your collection, organize it your way, and enjoy detailed playback without accounts, ads, tracking, or reliance on streaming services. PLAY YOUR COLLECTION Import music from Files, iCloud Drive, USB storage, your computer over Wi-Fi, or folders on WebDAV and SMB network shares. Use folders in place or copy tracks into PhaseShift. Browse songs, albums, artists, genres, playlists, recently added music, and pinned favorites. Customize your library shelves and artwork sizes to suit your collection. HIGH-FIDELITY AUDIO Play MP3, AAC, M4A, ALAC, FLAC, WAV, AIFF, DSF, and DFF files. See the active signal path, sample rate, bit depth, and output route while listening. Native DSD decoding and optional DSD over PCM support help you get more from compatible audio hardware. MAKE PLAYBACK YOURS Build and edit the queue, enjoy gapless playback, view synced or plain lyrics, set a sleep timer, and use A-B repeat or track bookmarks. Choose from customizable themes and visualizers, scrub with a real waveform, and fine-tune sound with a 10-band equalizer, ReplayGain, crossfade, headphone crossfeed, and correction profiles. ORGANIZE AND EDIT Create regular and smart playlists, sort and filter your library, edit tags and artwork, apply batch changes, and import CUE sheets as individual tracks. PhaseShift can write supported ratings and play counts back to your audio files, helping your collection remain portable. YOUR LIBRARY ACROSS YOUR DEVICES Pair your own devices with a QR code or pairing code, then sync music, playlists, artwork, ratings, play history, and tag changes over your local network. Sync your whole library or selected artists and playlists, and choose the audio quality stored on each sub device while keeping the primary library in control. Back up and restore library data whenever you choose. MORE WAYS TO LISTEN Control playback from Apple Watch, use Now Playing and Recently Added widgets, follow playback with a Live Activity, and start common actions with Siri and Shortcuts. On Mac, choose an audio output device directly in PhaseShift. PRIVATE BY DESIGN PhaseShift is designed to work offline. Your listening history and library stay under your control, and local transfer and device sync do not require an internet account. PhaseShift includes a capable free experience. PhaseShift Pro is available as a one-time in-app purchase and unlocks advanced features including the equalizer, ReplayGain, crossfade, waveform overview, A-B repeat, bookmarks, listening statistics, premium themes and visualizers, Apple Watch control, CUE import, batch find and replace, backups, and multi-device sync.
Attune
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Attune lets you hear what your headphones would sound like tuned, before you change anything, and without buying a different pair. Pick the headphones you own. Attune loads their measured frequency response, works out the difference between that and a target, and applies the correction to music playing right now. Toggle Stock and Matched to hear it. The two sides are loudness-matched, so you are judging tone rather than volume. The louder one always wins otherwise, and that is not a preference. THE GRAPH IS THE SOUND The curve on screen is computed from the same filters that are processing the audio. When the graph moves, the sound moves with it. Nothing is smoothed for looks. THREE WAYS TO AIM · Warren Labs is our house voice: neutral through the mids, warm down low, eased up top, the way a good room sounds. Adjust warmth, vibrancy and treble ease and the graph follows you. · Another headphone lets you hear a different headphone's voice on the pair you already own. We take the difference between the two and correct for it, loudness-matched. A try-before-you-buy audition, not the real thing, and it says so. · Your sound is your own result from the ear exam, over the house voice. FIND YOUR SOUND: A BLIND EAR EXAM Tap A and B, keep the one you prefer. The contrast starts wide and narrows as you go, so every choice stays easy to hear, and the pairs are blind so you are judging sound rather than labels. "They sound the same to me" is a real answer: we leave that band alone rather than guess at a preference you do not have. It is a preference tuner, not a hearing test. FINE TUNE Voice-match gets your headphones to the target as measured on our rig. What is left is how your ears couple to your pair, which no rig can know. Sweep a probe, and when something sticks out, pull it down. BRING YOUR OWN MEASUREMENT: FREE, ALWAYS Import a raw measurement as CSV, AutoEq or squig format and Attune will voice-match to it. This is not a paid feature and will not become one. YOUR OWN MUSIC Attune ships with a demo track so the whole flow works the moment you open it. Point it at a music folder, or open a single file, to audition with your own: WAV, AIFF, FLAC, ALAC, AAC or MP3. Streaming services stay in their own apps. Attune tunes the music you own. WHAT WE WILL NOT CLAIM The neutral baseline is derived from a diffuse-field reference measured on a Head Acoustics HMS II.3, transferred to the miniDSP EARS Pro baseline and validated two independent ways to 0.33 dB. Attune does not measure your ears, and it cannot. Above roughly 10 kHz the detail that matters is too narrow and too dependent on how the headphones sit to be fixed by any broad EQ. No software honestly can. What Attune fixes is the part that is wide enough to matter. FREE The whole audition flow, the ear exam, fine tune, measurement import, and one saved sound, kept permanently. Not a trial. ATTUNE PRO: ONE PURCHASE, $39, NO SUBSCRIPTION Unlimited saved sounds, and EQ export as a standard AutoEq file. Load that file onto a DSP dongle from a computer at warrenlabs.com/tune and it applies to everything you play, including streaming, because the dongle EQs the audio at the output. Attune Pro is a Universal Purchase. Buy it on your Mac and it is already unlocked here, and the other way round. Measurements are our own, taken on our own rig, and the app tells you the uncertainty rather than hiding it.
Screenshots
Verdict
The clearest difference is update cadence: PhaseShift at every 2 days against Attune's fortnightly. On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. PhaseShift sells 1 one-off in-app purchase and Attune sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
PhaseShift ships an update every 2 days, Attune fortnightly. Both last shipped on October 25, 2026.
| Parameter | PhaseShift | Attune |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 2 days — better | Fortnightly |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, Mac, Apple Watch — better | iPhone, iPad, Mac |
| Requires iOS | 17.0 | 16.0 — better |
| Further details — not scored | ||
| Size | 33 MB | 32 MB |
| Age rating | 4+ | 4+ |
| Developer | Nevv Atlantis LLC | Warren Labs |
In-app purchases
PhaseShift
- PhaseShift Pro$4.99
Attune
- Attune Pro$39.00








