Serento
EN
v1.0 · Private beta

Bit‑perfect
UPnP, natively.

Serento is a native control point for audiophile UPnP systems, on iPhone, iPad and Mac. Native DSD up to DSD512 (DoP fallback), PCM to 32-bit/768 kHz, gapless playback, and an interface built around the music, not around the device.

See the app Roadmap
DSD512
max rate
32/768
PCM ceiling
0 ms
added jitter
Serento iPhone now playing screen: bit-perfect transport
DSD512 · Native
FLAC · 32/768
Gapless
DSD512 Native ·
DSD256 Native ·
DSD128 DoP ·
DSD64 DoP ·
FLAC 32/768 ·
FLAC 24/192 ·
FLAC 24/96 ·
FLAC 16/44.1 ·
ALAC 24/96 ·
WAV 32/768 ·
AIFF 24/192 ·
MP3 320k ·
AAC 256k ·
Opus 192k ·
Gapless v1 ·
UPnP AV Control Point ·
OpenHome Autonomous queue ·
iPhone iPad · Mac ·
DSD512 Native ·
DSD256 Native ·
DSD128 DoP ·
DSD64 DoP ·
FLAC 32/768 ·
FLAC 24/192 ·
FLAC 24/96 ·
FLAC 16/44.1 ·
ALAC 24/96 ·
WAV 32/768 ·
AIFF 24/192 ·
MP3 320k ·
AAC 256k ·
Opus 192k ·
Gapless v1 ·
UPnP AV Control Point ·
OpenHome Autonomous queue ·
iPhone iPad · Mac ·
DSD512 Native ·
DSD256 Native ·
DSD128 DoP ·
DSD64 DoP ·
FLAC 32/768 ·
FLAC 24/192 ·
FLAC 24/96 ·
FLAC 16/44.1 ·
ALAC 24/96 ·
WAV 32/768 ·
AIFF 24/192 ·
MP3 320k ·
AAC 256k ·
Opus 192k ·
Gapless v1 ·
UPnP AV Control Point ·
OpenHome Autonomous queue ·
iPhone iPad · Mac ·
01 What it does

Every format your DAC understands,
nothing your DAC does not.

Decoding

DSD, all the way up

Native DSD64 to DSD512 with automatic DoP wrapping for DACs that don't speak native. Transport negotiated once, verified per track.

DSD64 2.8 MHz DSD128 5.6 MHz DSD256 11.2 MHz DSD512 22.6 MHz
Hi-res PCM

FLAC, ALAC, WAV, AIFF

32/768kHz
Streaming

Many audiophile stations

JazzGroove · JB Radio-2 · Linn
Naim Radio · Radio Paradise · Rondo Klasu
Protocol

UPnP AV + OpenHome

Your iPhone stays out of the audio path. It tells the renderer what to fetch; bits flow directly from server to DAC.

Silent network

Gap‑trimmed playback

Serento pauses network chatter between tracks so your DAC settles. Configurable 0–12000 ms.

Playback

Gapless, always

Classical

Classical, finally done right

A dedicated section that fits the repertoire. Open any work to see every recording you own side by side, movements in order, credits split by role. Composer bios, portraits and work histories pulled in the background.

Composer Work Conductor Orchestra Soloist Period Form
Recommendations

My Mixes

Smart playlists built from your own listening history, balanced across genre, era and codec. Similar artists and radio powered by Serento's database.

Offline

Downloads

Copy albums, tracks or playlists from your server to the device. Same bit-perfect pipeline, zero network. Resumable, per-device.

Multi-device

One queue, every device

Queue, playback state and volume mirrored between every Serento device controlling the same renderer. Start on iPhone, pick it up on the Mac.

Metadata

Bios, credits, lyrics

Artist bios, canonical credits and synced lyrics from Serento's database. Cached locally, never overwriting your tags.

02 The interface

An app that feels like hardware.

Serento iPhone home screen: recently added albums
01 · Home

Library at a glance. Recently added, stats, favorites.

Serento iPhone now playing screen: bit-perfect transport
02 · Now Playing

Format badge on every track. Scrub, queue, lyrics, output switcher.

Serento iPhone radio screen: presets and custom stations
03 · Radio

Presets + your own stations. Import M3U from Files.

03 Every screen

iPhone, iPad, Mac.
One library, one queue.

Serento on a MacBook: home view with recently added and favorite albums
Mac · Home

A native Mac app, not a port. Persistent sidebar, hover states on everything, a mini player anchored to the window bottom.

Serento on a MacBook: now playing with the play queue
Mac · Queue

History, playing now, up next. Mirrored across your devices.

Serento on a MacBook: classical section overview
Mac · Classical

Works, composers and recordings, with histories pulled in the background.

Serento on an iPad: classical section with composers, works, conductors and orchestras
iPad · Classical

Browse by composer, work, conductor, orchestra, soloist, period or musical form, instead of one flat artist list.

Serento on an iPad: album browse grid with sidebar
iPad · Browse

Browse the library and control playback at the same time.

Serento on an iPad: now playing with the play queue alongside
iPad · Now Playing

The cover and the queue, side by side.

04 Spec sheet

For engineers
and ears.

Playback
Sample rates 44.1 · 48 · 88.2 · 96 · 176.4 · 192 · 352.8 · 384 · 705.6 · 768 kHz
Bit depth 16 · 24 · 32 bit
DSD DSD64 · DSD128 · DSD256 · DSD512
Transport DoP v1.1 · Native (when renderer advertises)
Gapless On by default · your choice · no crossfade
Formats
Lossless FLAC · ALAC · WAV · AIFF · DSF · DFF
Lossy MP3 · AAC · AAC-HE · Opus · Ogg Vorbis
Networking
Protocol UPnP AV 1.0 · OpenHome 2.0
Discovery SSDP · Bonjour fallback
Control AVTransport · RenderingControl · ConnectionManager
Silent net Configurable 0–12000 ms between tracks
Platform
iPhone · iPad iOS 26.0 or later
Mac macOS 26.0 or later · Native app · Apple Silicon
Multi-device Queue · state · volume in lockstep
Dependencies Zero · SPM only
Offline Full. Local downloads, no cloud required
05 Questions

Frequently asked questions

Your phone discovers and commands two other devices on your network: a media server, where your music lives, and a renderer, your streamer or DAC. The audio flows directly between server and renderer, so the phone never touches the stream. That is how you get bit-perfect sound without draining your battery.
You need a music server running somewhere on your home network: an app like MinimServer, Asset UPnP or Plex on a computer or NAS, pointed at your music folder. That is the only real requirement. A dedicated hi-fi streamer or DAC is optional; without one, Serento plays perfectly well through the device itself.
No. The built-in setup guide is written for non-technical people, step by step and per operating system, and it reassures you that nothing in it can harm your computer. Most people go from nothing to playing in about ten minutes, and there is an email-us button inside it if you get stuck.
Any device that implements UPnP AV or OpenHome. On the server side that includes MinimServer, Asset UPnP and Plex; on the playback side it was validated during beta with Rockna, Linn, Lumin, Esoteric, Technics, iFi, WiiM and Eversolo, among others.
Yes. Switch on more than one server and Serento merges them into a single combined library, so a collection spread across different drives browses together as one. Toggle any server on or off whenever you like.
The first time you connect a server, Serento copies its catalogue, the titles, artists, covers and tags, not the audio files, onto your device, so browsing and search are instant afterwards. A large library takes a few minutes once; every later launch is instant, and adding new music is a quick top-up. The audio itself always streams on demand, so your device never fills up.
Not when you play to a streamer: it pulls the original file straight from the server, bit-perfect, and your phone is only the remote. When the device itself is the output, it decodes and plays at the best quality its hardware allows. Either way, the format badge and the bit-perfect indicator show you exactly what is happening.
Yes, when the renderer advertises support via OpenHome; otherwise Serento wraps DSD into DoP v1.1. The format badge on every track tells you exactly which transport is in use.
Never. Every correction, cover, biography and rating is layered on top of your read-only server tags and stored separately, so the files on your NAS stay exactly as you left them. There is even a one-tap way to restore an album to its original metadata.
Yes. Open Identify Album on any album and arrow through matches from the web; one tap fills in the correct title, year, genre, cover and track names, without touching your files. You can also hand-type any field, or let Serento fill only the blanks automatically during a sync.
Yes, extensively. Tag albums, tracks and artists with your own labels, and nest tags inside tags like folders; build playlists; bookmark any filtered, sorted view so you can return to it in one tap from anywhere; and favorite anything. All of it syncs across your devices.
Yes. A dedicated Classical section organizes your music by composer, work, conductor, orchestra, soloist, period and form, and stitches loose movement-tracks back into whole works in the right order. It appears automatically, and only if your library actually contains classical music.
Yes. Rate any album or track from one to five stars and filter your library by rating. A private Statistics dashboard shows your listening time and trend, your top artists and albums, records like your longest streak, and a year-in-music calendar, all built from your own play history and never shared.
Yes. Add internet radio stations by URL or M3U playlist, see what a station is playing now and recently, and favorite a track you recognize. Separately, Serento Radio keeps your own library playing endlessly in the genres you have been listening to when your queue runs out.
iPhone and iPad on iOS 26, plus a native macOS app built from the same Swift codebase and optimised for the desktop rather than ported. The three feel like one app, with your queue, playback state and volume kept in lockstep between devices controlling the same renderer.
Yes, through your own private iCloud. Favorites, playlists, tags, ratings, bookmarks, listening history and more appear on every device, and changes also travel instantly across your local network. Playback follows you too: start a song on your iPhone and pick it up on your Mac at the same spot.
UPnP is a home-network system, so your server is not reachable from outside your Wi-Fi. For listening on the go, download albums, playlists or tracks to the device while you are home and they play anywhere, with no server and no internet. Serento can even stream your downloads from your phone to a UPnP speaker somewhere else.
Playing to a streamer: no. The audio flows from server to streamer directly, so your phone is just the remote and can sleep or leave the room. Playing on the device itself: the device is the player, so it needs to stay on the network and awake enough to play.
No, not for playback: servers, renderers and Serento talk entirely inside your home network. The internet is only used for extras like online radio, artist photos, lyrics and metadata lookups. Your music plays fine with the internet down.
Yes. Multiple Serento devices coexist happily, each with its own library and settings, and on the same network they can see and steer a shared now-playing, even across different iCloud accounts. The subscription also supports Apple Family Sharing.
Not in version 1.0. Serento is built around the music you already own on your own server. Support for streaming services may come later as the app grows.
There is no account, and Serento never sees your music, your listening habits or anything that identifies you. It does send a small amount of anonymous technical telemetry, roughly your library size, the file formats you use, and the server and streamer models on your network, so we can improve compatibility and decide which hardware to support next. That is the whole of it: no ads, no tracking, no personal data. Your cross-device sync of tags, favorites and history runs through your own private iCloud, not through us.
You get a fourteen-day free trial with no account to create, tied to your iCloud so a reinstall cannot reset it. After that you choose an annual plan or a one-time Lifetime purchase, billed by Apple, with Family Sharing supported. If you start with annual, you can upgrade to Lifetime any time.