New in 2.1: big files start while they download, DSD converts always or per DAC, the Library sorts and lays out your way, and your DACs get a page of their own.
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: 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: 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.
• 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.
• Large FLAC, WAV and AIFF files can start while they download (optional).
LYRICS
• 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: 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.
Requires iOS 26.1 or later.
If you’re serious about Bit Perfect playback this is by far the best self hosted app. 1 Bridge it’s amazing and can be accessed from anywhere with the right configurations. Interface it’s so smooth and clean. Big ups to the developer. Can’t wait for what else they bring in the future.
NEW IN 2.1
• Big files start sooner: large FLAC, WAV and AIFF files can start playing while they download, instead of waiting for the whole file. Turn it on in Settings → Audio.
• More DSD choices: set DSD conversion to Always, or play DSD as PCM on just the one DAC that needs it. The conversion level now goes from +6 down to 0 dB, one step at a time, for recordings that would clip at +6.
• Your library, your order: choose how each list is sorted and laid out in Settings → Library → Browsing. Artist pages now show the newest albums first, and sorting albums by year adds a year index along the edge.
• A tidier Artists list: artists who only appear on compilations no longer crowd the Artists list; you can bring them back in Settings → Library → Compilations.
• A home for your DACs: DACs have their own page in Settings, one row per DAC, with Profile my DAC right there. Plug in a DAC the app doesn't know yet and the Audio page invites you to profile it.
• iFi DACs, thanks to Axel: 1-bit now recognises iFi USB DACs, thanks to the profile Axel Arenas sent in with Profile my DAC.
• More room to scroll: the tab bar shrinks while you scroll, with the mini player beside it, and comes back when you scroll up.
The full changelog is at 1-bit.app/changelog. If anything seems off after updating, write to support@1-bit.app.
Version 2.1
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, for example, based 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
Seller
Arsenie Coseac
Size
43.2 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.