3 min read

1-bit 1.1, from the heart

1-bit version 1.1 is on the App Store: a free open-source bridge for your music library, a stack of hard-won launch-week fixes, and the same bit-exact DSD and PCM playback to your USB DAC.

Updated

  • 1-bit
  • iOS
  • DSD
  • audio

1-bit 1.1 is live on the App Store — same URL, new version. Update on your iPhone and you’ll see it.

Most of 1.1 doesn’t show up in a bullet list. It’s the rough edges from launch week — pairing flows that didn’t quite hold, scanner behaviour on bigger libraries, the long tail of small fixes you only find once real people start using the thing. If you want the unfiltered version, the pull requests on the 1-bit repo are the real changelog. The headline addition on top of all that polish: the 1-bit bridge — a free, open-source companion server that gets your library off SMB and onto a transport designed for the app.

What’s new

1-bit bridge, properly launched. A free, open-source companion server you can run on a Mac, a Windows PC, a Linux box, or a Raspberry Pi sat next to your music drive. Pair an iPhone in three steps with a QR code from the admin console, and the phone talks to your library over HTTPS instead of SMB. It’s noticeably faster than SMB — first scan after pairing finishes in seconds — and unlike SMB, it works over Tailscale or WireGuard, so your library is reachable from anywhere your phone has signal. Same bit-exact audio path on the iPhone side: the bridge ships bytes; the phone still owns DSD, DoP, gapless, all of it. Bridge page has the details.

Bonjour for bridges. Nearby bridges show up automatically in the Add-Source sheet. Type the bearer token (or scan the QR) and you’re paired.

The unglamorous half of 1.1. The launch-week fixes that don’t make a feature list — an app-quits-on-launch trace pinned to root services rebuilding on every parent re-eval, a first-launch mass-delete trap on libraries larger than ~500 albums or artists, and auto-revive when iOS 26 silently stops AVAudioEngine ~600 ms after a tap with a USB DAC attached. Settings also got a proper home: theme override, alternate app icons, ReplayGain on PCM (DSD always stays bit-exact), Bauer crossfeed for headphones, a defer-next-track-preload toggle to quiet shuffle and repeat clicks, and a per-DAC resync-delay override for unknown hardware.

A privacy policy that’s actually been audited. Three documents now move together — the in-app screen, the web policy, and the bridge’s own privacy page. Zero personal data collected, by design — which inherently complies with the GDPR (EU), the Swiss FADP, and the CCPA. The policies and the code are checked against each other before every release.

Same audio path. No EQ, no loudness, no resampling, no dithering, no funny business. DSD goes out as DoP to your USB DAC; PCM goes out at the file’s native sample rate. The phone moves bytes; the DAC does the DAC’s job.

The unromantic version

If you already have 1-bit installed: open the App Store and tap update. Your existing SMB shares keep working. Your scan history keeps working. Your Now Playing keeps working. The bridge is additive — you only opt in if you want it.

If you’re new: it’s a free download, iPhone or iPad, iOS 18.6 or later. Bring a NAS, a USB DAC, and music you actually like.

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