Symfonium sits in a strange spot on Android. It costs about nine euros as a one-time purchase, which is not much for a music player, and it gives you polished Android Auto playback that streams straight from a Subsonic, Jellyfin, Emby, or Plex server on your NAS. That combination is rare. Users searching for Symfonium alternatives usually want one of two things: the same feature set without paying, or a specific piece of it (a lighter Subsonic client, a better Android Auto experience, or a straight local-file player) done better.
We tested seven Android music players against that brief. Some are open-source Subsonic clients that Symfonium fans keep installed on a spare phone. Others are paid heavyweights like Poweramp that skip the self-hosted part and focus on local files with tight car integration. This piece names what each one does well, where each one slips, and who should pick it.
Quick comparison
| App | Best for | Free? | Price | Standout |
|---|---|---|---|---|
| Symfonium | Full self-hosted stack + Auto | Trial | ~9 EUR one-time | Four backends, tag editor, top-tier Auto |
| Ultrasonic | Free Subsonic client | Yes | Free, GPL-3.0 | Zero cost, no ads, offline caching |
| Tempo | Modern Subsonic UI | Yes | Free, GPL-3.0 | Material You look, active development |
| SubStreamer | Paid Subsonic client on a budget | 7-day trial | ~3 USD unlock | Chromecast, Auto, lock-screen art |
| Subsonic Music Streamer | Official Subsonic client | Trial only | Free app, needs server sub | Reference implementation of the API |
| Poweramp | Local files with Auto polish | 15-day trial | ~5 USD unlock | Hi-res DSP, gapless, Auto browse |
| Retro Music Player | Free local player, nicer UI | Yes | Free, GPL-3.0 | 10 themes, tag editor, clean home |
| Musicolet | Offline, folders, multi-queue | Yes | Free (donation app) | Zero internet permissions |
Why people leave Symfonium
Symfonium’s paywall is small but real. You buy it once through Play Store, and on Android that binds the license to a single Google account, which trips users who juggle a work phone and a personal phone. Threads on the Symfonium subreddit and the developer’s own forum surface the same objection every few weeks: the app is fair value, but “why pay when Ultrasonic and Tempo do most of it for free.”
The second complaint is scope. Symfonium is a client, not a player for the local files sitting in the phone’s Music folder. It can read local folders, and it does that well, but the interface is built around servers. Users with no NAS and no Subsonic instance find themselves paying for features they cannot use.
Third, Android Auto. Symfonium’s Auto view is excellent, and it needs the paid tier to work fully. That is the exact combination XDA praised in its 2025 piece on making a self-hosted library play flawlessly in the car. Alternatives tend to split into “cheaper and rougher in Auto” or “no Auto at all.”
The 7 best Symfonium alternatives for Android
Ultrasonic, best free and open-source Subsonic client
Ultrasonic is the go-to zero-cost Subsonic client on Android. It talks to Subsonic, Airsonic, Navidrome, Gonic, and any other Subsonic-compatible backend. Offline caching works from day one, the app carries no ads, and it collects no telemetry.
Where it falls short: The interface is functional rather than pretty. Android Auto support is basic (browse and play), and lock-screen art occasionally lags behind the current track on slow connections.
Pricing: Free, GPL-3.0. Available on Google Play and F-Droid.
vs Symfonium: Ultrasonic is the price argument. You lose the polished tag editor, the four-backend flexibility (Jellyfin, Plex, and Emby need separate apps), and the smoother Auto experience. You keep every Subsonic feature that matters on a day-to-day basis.
Download: Google Play
Bottom line: Pick Ultrasonic if you run Navidrome or Airsonic and want the license fee to be zero.
Tempo, best modern Material You Subsonic client
Tempo is a newer open-source Subsonic client with a Material You design that looks close to Google’s own apps. It handles Navidrome and vanilla Subsonic, syncs offline downloads, and covers the usual queueing, favorites, and playlist basics.
Where it falls short: Development is single-maintainer, so releases arrive in bursts. Android Auto support exists but has fewer browse levels than Symfonium’s. There is no equalizer.
Pricing: Free, GPL-3.0. Google Play only.
vs Symfonium: Tempo matches Symfonium’s polish on the phone, but not in the car. Playlist editing is simpler, and the tag editor and multi-backend switching are absent.
Download: Google Play
Bottom line: Pick Tempo if the Symfonium interface is what you actually paid for, and you can live without Auto being perfect.
SubStreamer, best cheap paid Subsonic client
SubStreamer is a paid Subsonic client that undercuts Symfonium by a few euros and includes a working Android Auto view, Chromecast, and album art on the lock screen. It has been on the store since 2016 and receives steady updates.
Where it falls short: Interface conventions are older Material 1 and feel dated next to Tempo or Symfonium. Search is slower on large libraries (roughly 30,000 tracks and up). No Jellyfin, no Plex.
Pricing: Seven-day full trial, then about 3 USD one-time to unlock.
vs Symfonium: SubStreamer is a third of the price and covers Subsonic-only setups well. It skips Symfonium’s Jellyfin, Emby, and Plex support, and it does not have the same tag-editing depth.
Download: Google Play
Bottom line: Pick SubStreamer if your only backend is Subsonic or Navidrome and you want Auto plus Chromecast at a bargain price.
Subsonic Music Streamer, best if you already run Subsonic Premium
Subsonic Music Streamer is the original Android client, published by the same team behind the Subsonic server. It ships as part of the Subsonic Premium subscription, so if you already pay for the server you already own the client.
Where it falls short: The interface has barely changed in years. Auto support is minimal. The app requires the paid Subsonic server subscription to unlock past a short trial window, so it is not free in practice.
Pricing: App is free, but requires Subsonic Premium (roughly 1 USD per month) to use beyond the trial.
vs Symfonium: It is the reference implementation of the Subsonic API. Nothing else supports quirky server features first. Everything else about the experience (design, car support, backend variety) loses to Symfonium.
Download: Google Play
Bottom line: Pick this only if you already pay for Subsonic Premium and want the official client on your phone.
Poweramp, best paid local player with Android Auto polish
Poweramp is the veteran Android music player, first released in 2010 and still one of the most active on the store. It reads local files, USB drives, and SMB shares. Its DSP chain is deep (equalizer, tone controls, reverb, hi-res output over USB DACs), and its Android Auto browser handles large libraries without stuttering.
Where it falls short: No Subsonic, no Jellyfin, no Plex. If you have a home server, Poweramp cannot see it without a mounted SMB share, which most people will not set up.
Pricing: 15-day full trial, then roughly 5 USD one-time (regional pricing varies).
vs Symfonium: Poweramp is the answer for readers who realized they only wanted the great-Android-Auto-music part of Symfonium and did not need the server side at all.
Download: Google Play
Bottom line: Pick Poweramp if your music lives on the phone and the SD card, and Auto is the deciding factor.
Retro Music Player, best free open-source local player
Retro Music Player is a well-designed local-file player with 10 themes, a five-band equalizer, tag editing, and a homepage that mimics Spotify’s layout. It is fully open-source and has an active fork community, so releases keep landing even during quiet stretches from the original maintainer.
Where it falls short: Local files only. No streaming, no Subsonic, no cast. Android Auto is basic browsing, without Poweramp’s queue-management niceties.
Pricing: Free, GPL-3.0. Available on Google Play and F-Droid.
vs Symfonium: Retro is what you install on a spare phone that will never see a home server. It matches Symfonium on visual polish and loses everything else.
Download: Google Play
Bottom line: Pick Retro if you want a free, pretty local player and Auto is not a hard requirement.
Musicolet, best fully offline no-frills player
Musicolet is the choice for readers who want a player that literally does not touch the internet. It requests no network permissions, has no accounts, no ads, and no telemetry. It supports up to 20 parallel queues, folder browsing, and a built-in tag editor.
Where it falls short: The interface is utilitarian. No streaming, no Chromecast, no Subsonic, no Jellyfin. Android Auto is functional but plain.
Pricing: Free. The developer accepts donations through a separate donation app on Google Play.
vs Symfonium: Musicolet occupies the opposite end of the spectrum. Symfonium wants your NAS on the network; Musicolet refuses to have a network at all.
Download: Google Play
Bottom line: Pick Musicolet if privacy and offline behavior are the point, and streaming is off the table.
How to choose
We would keep Symfonium on the main phone. The one-time price is small, Auto works, and the multi-backend support is genuinely rare on Android. Nothing else covers Subsonic, Jellyfin, Emby, and Plex under one interface.
Pick Ultrasonic if the license cost is your only objection and your server is Subsonic or Navidrome. It is the direct free replacement for most of Symfonium’s core loop.
Pick Tempo if the Symfonium look is what you liked, and you can accept that Android Auto will not feel as smooth. On the phone, Tempo is the closest visual match.
Pick Poweramp if you only ever cared about Android Auto and local files. Skip Symfonium entirely. Poweramp handles the car better than any Subsonic client, Symfonium included.
Pick SubStreamer if your budget is closer to a coffee than a lunch, and your setup is strictly Subsonic.
Pick Retro Music Player or Musicolet if you decided you do not want a home server after all. Retro looks nicer. Musicolet is stricter about permissions.
Stay on Symfonium if you actively use two or more backends (Subsonic and Jellyfin, or Jellyfin and Plex). Nothing else on Android does that in one app.
FAQ
Is there a free version of Symfonium?
Symfonium ships with a limited trial through Google Play. Full features (unlimited playback, Android Auto, tag editor) require the one-time purchase, currently around nine euros. The developer does not offer a permanently free tier.
What is the cheapest paid Symfonium alternative?
SubStreamer is the cheapest with a comparable Subsonic feature set, at roughly 3 USD for a lifetime unlock. Poweramp is slightly higher at about 5 USD but covers local files with excellent Android Auto rather than server streaming.
Can I use Symfonium with Jellyfin?
Yes, Jellyfin is one of the four supported backends alongside Subsonic, Emby, and Plex. Most alternatives on this list support only one of those (usually Subsonic). Finamp is the dedicated Jellyfin option on Android, but it is not currently on Google Play, so we did not include it in the comparison.
What is the best free Symfonium alternative for Android Auto?
Ultrasonic and Tempo both include Android Auto and are free. Neither matches Symfonium’s Auto browse depth. If Auto is the priority and paying is on the table, Poweramp is the strongest Auto experience, but it is local-files only.
Do Symfonium alternatives support gapless playback?
Poweramp, Musicolet, and Retro Music Player all support gapless for local files. Ultrasonic, Tempo, and SubStreamer support gapless when the backend server (Navidrome or Subsonic) transcodes appropriately. Symfonium’s gapless remains the most reliable of the group across all four supported backends.
