See exactly what you're hearing
Every album and track wears its codec, bit depth and sample rate, from AAC 16/44.1 to FLAC 24/96, and a Lossless filter shows what is worth a good pair of headphones.
Flaccy
Music
Play the music you own, at full quality
Flaccy plays your FLAC, ALAC, WAV, AIFF, MP3 and AAC files exactly as they were mastered — gapless, with a real equalizer, synced lyrics, Last.fm scrobbling and an Apple Watch app that works without your phone. No account, no ads, and your files never leave your device.
New on the App Store Free Music iPhone Apple Watch Mac Linux
- Codec, bit depth and sample rate on every track, from CD quality to Hi-Res
- A real equalizer: drag the curve, import AutoEq profiles, give every output its own setting
- Gapless playback, synced lyrics and every play scrobbled to Last.fm, even offline
- A standalone Apple Watch app, a native Mac app and a free Linux app
./flaccy --screenshots
Flaccy in action
tap a screen to enlarge · swipe to see more → click a screen to enlarge
cat flaccy/FEATURES.md
What Flaccy does
A real equalizer
Drag the curve and hear it change, or switch to Advanced for up to ten bands with bells, shelves, filters and adjustable Q. Sixteen presets, your own saved profiles, and import of Equalizer APO and AutoEq text to tune for your headphones. Every output remembers its own setting, so AirPods, a wired DAC and the speaker each sound right. Automatic headroom keeps boosts from clipping, Hold to compare is level-matched so louder never wins, and gapless playback stays intact. On iPhone, Mac and Linux.
Your library, organized
Bring music in from the Files app, a USB drive, a NAS or any folder, and Flaccy keeps your folder structure. Messy filenames and scene releases are cleaned up automatically with AI cleanup (included in the trial and in Lifetime), duplicate songs are listed once, and you can swap any cover for your own.
Gapless, as albums were made
Albums flow track to track with zero silence — exact for FLAC, ALAC, WAV and AIFF. The queue survives relaunches, so the music picks up where you left it.
Lyrics that follow every word
Synced lyrics with tap-to-seek, from your own .lrc files or looked up automatically. Plus AirPlay, a sleep timer, Lock Screen and Dynamic Island controls, and a Now Playing screen worth looking at, in light or dark.
Scrobble everything
Sign in with Last.fm and every play is scrobbled, even offline, with automatic retry. Listening charts, artist bios, a wantlist for the records you're hunting and smart playlists made from your own listening.
Year in Music
Your listening year as shareable story cards and a poster: top artists, albums and the numbers behind them, rendered from your own plays.
Phone-free on Apple Watch
Sync albums to your wrist and play them offline: gapless, shuffle, repeat and AirPods controls, with storage-smart sync that knows what fits. No iPhone in your pocket.
Honest about audio
The built-in Listening Guide explains what actually reaches your ears: Bluetooth codecs, why lossless can't reach AirPods, and when FLAC is worth it. No snake oil.
Private by design
No account, no ads and nothing uploaded: your files stay on your device. AI cleanup, when you use it, sends file names and tags, never audio, and Last.fm is entirely optional.
Made for iPhone Duo
On the inner display the library sits beside Now Playing, lyrics and artwork take their own panes, and every screen ends at the fold. On the outer display it is a regular, fast iPhone player.
Flaccy for Mac
A native Liquid Glass Mac app that wears the colour of your music, with the equalizer in its own window beside your library (⌥⌘E). Watch a folder and new files appear instantly, control playback from the menu bar player and your media keys, sort a multi-column song list, browse keyboard-first and export full-resolution Year in Music posters. Available on the Mac App Store.
Flaccy for Linux
A native GTK4 app that tints itself with the colour of whatever is playing, with gapless GStreamer playback, MPRIS media keys, Last.fm scrobbling, synced lyrics, listening stats and the same equalizer, in light or dark. Free and open source. Install with one command — curl -fsSL https://raw.githubusercontent.com/guitaripod/flaccy/master/linux/get-flaccy.sh | sh — or from the AUR with yay -S flaccy-bin.
./flaccy --pricing
Free to try. Own it once.
Free trial
7 days
- Everything unlocked, counted from the first time you play your own music
- A free sample album to hear Flaccy in seconds
- No account, no ads
Flaccy Lifetime
$12.99
- Your library, gapless playback, synced lyrics and Last.fm scrobbling
- AI cleanup, Year in Music, smart playlists and the wantlist
- Apple Watch app included on iPhone; one purchase, no subscription
- Lifetime $12.99 One payment
- Yearly $7.99 Renews until canceled
US prices shown; your local price appears in the App Store. The iPhone app (with Apple Watch) and the Mac app are separate purchases. Flaccy for Linux is free and open source.
man flaccy
How Flaccy works
-
Import
Pick files or whole folders in the Files app, copy over USB, or connect a NAS. Flaccy shows what it is doing while it indexes, then opens straight into your library. Try it right away with the free sample album.
-
Listen
Browse albums, artists, songs and playlists, then play gaplessly with synced lyrics, AirPlay and full controls on the Lock Screen and in the Dynamic Island.
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Scrobble
Sign in with Last.fm once and every play is counted, even offline. Watch your charts grow and unwrap your Year in Music.
less flaccy/README
About Flaccy
Flaccy plays the music you own at full quality: FLAC, ALAC, WAV, AIFF, MP3 and AAC. Gapless playback, synced lyrics, Last.fm scrobbling and a standalone Apple Watch app. No account, no ads, and your files never leave your device.
SEE EXACTLY WHAT YOU'RE HEARING
• Codec, bit depth and sample rate on every track, from CD quality to Hi-Res
• Gapless playback that honors your albums (exact for lossless files), with a queue that survives relaunches
• A built-in Listening Guide that explains what Bluetooth, AirPods and wired DACs really deliver. No snake oil
YOUR LIBRARY, ORGANIZED
• Bring music in from the Files app, USB, a NAS or any folder; Flaccy keeps your folder structure
• Messy filenames and scene releases are identified and cleaned up automatically (AI cleanup is included in the trial and in Lifetime)
• Albums, artists, songs and playlists with fast search, flexible sorting and large artwork you can replace with your own
• Duplicate songs are listed once, and Flaccy builds smart playlists from your own listening
MADE FOR LISTENING
• Synced lyrics with tap-to-seek
• Full controls on the Lock Screen and in the Dynamic Island, AirPlay and a sleep timer
• Light and dark appearance, and a Now Playing screen worth looking at
SCROBBLE EVERYTHING
• Sign in with Last.fm and every play is scrobbled, even offline, with automatic retry
• Listening charts, artist bios and a wantlist for the records you're hunting
• Year in Music: shareable story cards and a poster of your listening year
APPLE WATCH, NO PHONE NEEDED
• Sync tracks to your watch and play them offline
• A true standalone player with gapless playback, shuffle, repeat and AirPods controls
• Storage-smart sync that knows what fits
TRY IT FREE
Flaccy is free for 7 days from the first time you play your own music. After that, keep everything with a one-time Lifetime purchase, or choose the yearly plan. The yearly plan renews automatically unless canceled at least 24 hours before the end of the period; manage or cancel it in your Apple Account settings.
Flaccy plays FLAC, ALAC, AAC, M4A, MP3, WAV, AIFF and CAF.
Terms of Use: https://mako.midgarcorp.cc/terms/flaccy
Privacy Policy: https://mako.midgarcorp.cc/privacy/flaccy
./flaccy --faq
Frequently asked questions
What audio formats does Flaccy play?
FLAC, ALAC, WAV, AIFF, MP3, AAC, M4A and CAF. Playback is gapless for all of them, but only lossless files (FLAC, ALAC, WAV, AIFF) are sample-exact at the seams: MP3 and AAC carry encoder padding that iOS does not strip, so a lossy rip of a segued album can click where the lossless one does not. DSD is not supported.
Does Flaccy have an equalizer?
Yes, on iPhone, Mac and Linux. Drag the curve in Simple mode, or switch to Advanced for up to ten bands with bells, shelves, high-pass and low-pass filters and adjustable Q. It ships with sixteen presets, saves your own, and imports Equalizer APO and AutoEq profile text so you can tune for your headphones. Each output (AirPods, a wired DAC, the speaker) keeps its own setting and switches when you do. Automatic headroom prevents clipping, and Hold to compare is level-matched so louder never sounds better. With the equalizer off or flat the signal passes through untouched, and gapless playback is unaffected. The Apple Watch app plays through the system and has no equalizer.
Do I need an account or a streaming subscription?
No. Flaccy plays files you already own. There is no account, no upload and no ads. A Last.fm account is optional, only for scrobbling. AI cleanup sends file names and tags, never audio, to identify messy albums.
How much does Flaccy cost?
Free to download, with a 7-day free trial that starts the first time you play your own music. After that, keep everything with a one-time Lifetime purchase ($12.99), or choose the yearly plan ($7.99 a year, renews until you cancel). The iPhone app (with Apple Watch) and the Mac app are separate purchases. Flaccy for Linux is free and open source.
How do I get my music into Flaccy?
Pick files or whole folders in the Files app, copy them over USB, or connect a NAS through Files and import from there. Folders keep their structure, so compilations and multi-disc albums stay together. Messy folder names and scene releases are identified and cleaned up automatically.
Does Flaccy scrobble to Last.fm?
Yes. Sign in with your Last.fm account and every play is scrobbled, even offline, with automatic retry once you're back online. You also get loved tracks, listening charts and artist bios matched to your library.
Is there an Apple Watch app?
Yes, a true standalone player. Sync albums from your iPhone, then play them offline from your wrist with gapless playback, shuffle, repeat and AirPods controls. No iPhone required.
Is lossless audio worth it on iPhone?
It depends on how you listen, and Flaccy is honest about it. The built-in Listening Guide explains Bluetooth codecs, why lossless can't reach AirPods, when FLAC is genuinely worth it and what blind tests really show.
Does it work on iPhone Duo?
Yes. On the inner display the library sits beside Now Playing, lyrics and artwork get their own panes, and layouts end at the fold. On the outer display it behaves like a regular iPhone.
Is there a Mac app?
Yes. Flaccy for Mac is a native Liquid Glass app on the Mac App Store. Point it at a folder and new files appear instantly, control playback from the menu bar player and your media keys, sort a multi-column song list and export full-resolution Year in Music posters. It is a separate purchase from the iOS app.
Is there a Linux app?
Yes. Flaccy for Linux is a free, open source GTK4 app with gapless playback, MPRIS media keys, Last.fm scrobbling, synced lyrics and a full equalizer, with an adaptive theme that retints the whole app with the colour of whatever you're playing. Install it with the one-line command in the Flaccy for Linux section or from the AUR with yay -S flaccy-bin.
Your music deserves a better player.
Free to try for 7 days, then a one-time Lifetime purchase or a yearly plan. No account, no ads, nothing uploaded. The iPhone app (with Apple Watch) and the Mac app are separate purchases; Flaccy for Linux is free and open source.
ls ~/apps
