1-bit is a private, bit-exact music player for iPhone and iPad. Play your own files from a UPnP/DLNA media server, an SMB share, your own 1-bit-bridge server, a folder on your device, or 1-bit Cloud, a private library we host for you. No analytics, no ads, and no account unless you choose the cloud.
SOURCES
• UPnP/DLNA media servers on your Wi-Fi: NAS, MiniDLNA, Plex, a Chord 2Go. Found automatically, streamed bit-exact, DSD included.
• SMB shares on your home network.
• 1-bit-bridge, a free, open-source (MIT) server you run on Mac, Linux, Pi or Windows. Pinned HTTPS, tap-to-pair by Bonjour or QR.
• 1-bit Cloud (new): the same bridge, run by us. Sign in with Apple, upload from any computer, and it appears in Sources. 20 GB free. Strictly private, downloadable bit-exact, deletable in one step.
• Any folder on your device or an external drive, picked in Files, nothing copied. Download for offline play.
• No server yet? Add the read-only demo library in one tap.
AUDIO
• Bit-exact PCM (FLAC, WAV, AIFF, ALAC, MP3, M4A) up to the limits of your DAC.
• Bit-exact DSD over DoP for DSF and DSDIFF, up to DSD256, with a USB DAC that reports DoP lock (Chord, iFi, Topping, Mytek and others).
• DSD on any output (new): AirPods, AirPlay, CarPlay and the speaker play DSD converted to PCM on the phone and labeled as such. A wired DAC still gets the untouched path.
• SACD .iso rips open into per-track rows; DST-compressed DSDIFF decodes as it plays (new).
• Gapless when adjacent tracks match. Per-DAC tuning, anti-click rate switching and thermal-aware buffering keep DSD256 smooth.
• Spatial audio (beta): a binaural renderer with head tracking on supported AirPods. PCM only.
LYRICS (NEW)
• Synced lyrics that follow the music line by line, from the file's tags, a sidecar, your bridge, or an online source you switch on yourself. Tap the artwork on Now Playing.
SEE WHAT YOU HEAR
• Signal Path shows what actually reached your DAC, with an optional live spectrum and true-peak analyzer.
• Whole-track analysis answers "is this really hi-res?"; a bridge adds dynamic range, key, tempo and a FLAC checksum that flags an altered file.
• Profile my DAC (new): guided measurements you can send in so your hardware gets supported properly.
VOICE, SIRI & CARPLAY
• "Hey Siri, play [album, artist, playlist, or genre] on 1-bit". Shortcuts and Spotlight too.
• CarPlay: Recently Added and Played, Artists, Albums, Playlists, Favorites and Downloads, A to Z indexed, with voice search and Shuffle. Its browser lists PCM; DSD started from the phone plays converted.
HOME MIXES (WITH A BRIDGE)
• Your bridge builds mixes from your listening: Heavy Rotation, Daily Mix, On Repeat, Favorites and more; they can cache overnight for offline play.
OUTPUT
• Play through a USB DAC, AirPods, AirPlay 2 or the speaker, or cast to a DLNA renderer such as a Chord 2Go.
LIBRARY
• Fast enough for 50,000+ tracks across every source; the first scan carries on overnight while charging.
• Browse by artist, album, composer, genre, folder, playlist or a flat Tracks list, with an "Appears On" section. Search everything, filter by source.
• Heart tracks and albums; Favorites can follow you across devices with a bridge.
PLAYER
• A redesigned Now Playing with a waveform scrubber; the floating player arrives on iPad.
• Resume where you left off. Home Screen widget, Lock Screen and Control Center transport, sleep timer, optional crossfeed.
BRIDGE EXTRAS
• Upscaling and DSD-to-PCM renditions made on your own hardware, the original always one tap away.
• Atlas notes and better cover art; backup of playlists, favorites and playback history to your own bridge. All off by default on a bridge you run.
PRIVACY
• No analytics, no tracking, no ads. Optional lookups are off by default; passwords and tokens live in the iOS Keychain. The only server of ours that holds anything is 1-bit Cloud, and only if you create a library. 1-bit.app/privacy says exactly what.
Requires iOS 26.1 or later.
Ratings & Reviews
This app has not received enough ratings or reviews to display an overview.
Codename "Unfinished Symphony". A round of fixes on top of 2.0, the largest release since 1-bit launched.
FIXED IN 2.0.1
• Theme follows iOS again. With Theme set to System, light and dark switch with the system, and a theme you pick applies right away rather than after a relaunch.
• Gapless over a remote bridge. The next track is fetched early enough to join gaplessly, timed by the connection's measured speed.
• A change to DSD conversion or its level, the stereo effect or ReplayGain now reaches the next track even when it is already lined up for gapless.
• When another app's audio interrupts playback, the track resumes with sound, and the timer stays where the music is.
• Artist pages fetch a portrait that is missing, and the header of a guest appearance opens the album.
• Signal Path claims a verified bit-exact path only when nothing alters the bits, and Now Playing says when a bridge-optimized copy is playing over Bluetooth or AirPlay.
• Albums show a favorite heart on their page and in lists, and a track that comes back over a bridge keeps its playlist slots, heart and download.
• Tracks from an SACD .iso no longer refuse to play over storage they do not need; Siri no longer stops on an SACD container in a playlist, and CarPlay no longer lists one as a blank row.
NEW IN 2.0
• 1-bit Cloud (beta): a private bridge that we run, so you don't have to leave a computer switched on at home. Sign in with Apple, add music from any computer through the web uploader, and it appears in Sources like any other bridge. 20 GB is included free.
• Lyrics: synced lyrics that follow the music line by line, read from the file's own tags, from a sidecar beside it, from your bridge, or from an online source you switch on yourself. Tap the artwork on Now Playing and it becomes the lyric sheet.
• DSD on any output: DSD used to refuse anything but a wired DAC. It now plays on AirPods, AirPlay, CarPlay and the speaker, converted to PCM on the phone and labeled as converted wherever it is shown. A capable wired DAC still gets the untouched bit-exact path.
• SACD rips and compressed DSD: an SACD .iso now opens into ordinary per-track rows that play and download like anything else, and DST-compressed DSDIFF files that were refused outright now decode as they play, gaplessly.
• DSD256, and a wizard for your DAC: DSD256 over DoP is confirmed working, so the ceiling that used to sit at DSD128 is gone on hardware that supports it. Diagnostics adds Profile my DAC, a guided set of measurements you can send in so your hardware gets supported properly.
• Built for iOS 27: on iOS 27, the Lock Screen, Control Center and CarPlay controls run on Apple's new Now Playing session, including shuffle, repeat and the Favorite heart. Tracks stored on this device that carry no loudness tag get an on-device loudness estimate, so ReplayGain can level them too. Everything keeps working on iOS 26.1 and later.
ALSO IN 2.0
• Your bridge can convert DSD ahead of time so it streams a fraction of the size.
• The floating player arrives on iPad.
• A flat Tracks list.
• Better tags and artwork from files on your device.
• A redesigned Now Playing.
• Multiple fixes.
The full changelog is at 1-bit.app/changelog. If anything seems off after updating, write to support@1-bit.app.
A big thank you to everyone who has sent feedback and reports. Much of this release traces back to those messages.
Version 2.0.1
The developer, Arsenie Coseac, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Privacy practices may vary based, for example, on the features you use or your age. Learn More
The developer indicated that this app supports the following accessibility features. Learn More
Supported Features
VoiceOver
Larger Text
Dark Interface
Sufficient Contrast
Information
Provider
Arsenie Coseac
Size
41.7 MB
Category
Music
Compatibility
Requires iOS 26.1 or later.
iPhone Requires iOS 26.1 or later.
iPad Requires iPadOS 26.1 or later.
Mac Requires macOS 26.1 or later and a Mac with Apple M1 chip or later.