iSub Music Streamer vs SubStreamer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
iSub Music Streamer
Stream your entire music collection from your home computer to your mobile device. Enjoy all your audio files, including concert recordings and audiobooks, anywhere you go. Customize your listening experience with powerful playback and playlist management features.
- Stream music from home computer
- Supports MP3, AAC, FLAC, ALAC, OGG, OPUS
- Gapless playback and equalizer
- Works over WiFi and cellular data
- Cache songs and albums
- Create and edit playlists
- Transcode audio to save bandwidth
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You love your music. In fact, you have the biggest collection of albums and individual songs of anyone you know and you listen to your playlists as often and for as long as you possibly can. Now, thanks to iSub Music Streamer, you’re enjoying your favorite songs everywhere you go, even at work or on a long plane ride. iSub is an incredible app that lets you stream all of that music—even your concert recordings, DJ mixes, and audio books—from your home computer directly to your iPhone, iPod touch, or iPad over WiFi and mobile data. iSub streams your music from any Subsonic compatible server (Subsonic, Airsonic, Madsonic, and others). There’s no central service to rely on and it's all your own music, so you never have to worry about songs randomly going missing when their licensing runs out like on some streaming services. It doesn’t matter the size or file format of your collection; iSub can handle it all thanks to native support for popular lossless and lossy file formats like MP3, AAC, FLAC, ALAC, OGG, and OPUS. Save your limited mobile data when on the go thanks to Subsonic’s ability to transcode your songs to a lower bitrate as they play, and listen to your high-resolution lossless FLAC files when at home or on a WiFi connection. iSub isn’t just about listening, either. You can easily search, browse, and edit your playlists right from you device, shuffle songs and albums, view your latest additions and far more! The current and next song caches automatically as you play, saving you money on your data plan. You can even cache whole albums over WiFi without having to play them, so you can be ready for that long plane ride. Customize your music experience and make it just the way you want it. Don’t just get force fed music like some other apps. With iSub, you're in control of your music! Check out the amazing features you get when you download iSub Music Streamer: - Native support for MP3, AAC, FLAC, ALAC, OGG, and OPUS files! - Gapless playback! - Full parametric equalizer! - Works over WiFi and cellular data - Streams directly from your home computer to your device, no service to rely on - Universal app: buy once and use on iPhone, iPod touch, and iPad - Skip within tracks while they stream even when transcoding - Can lower bitrate to save bandwidth when on the go - Search your collection for albums, artists and songs from the Home tab - Shuffle your whole collection with the press of a button - Easily find your newest album additions - Caches current and next songs to your device as you play for the best performance - Cache songs when on WiFi without having to play them - Create custom playlists from your device and save them back to your server - Save bookmarks to go back to your favorite spot in a long recording or album - Supports AirPlay and Bluetooth speakers to listen with friends If you love music, this is the ultimate app for you. Download iSub Music Streamer now!
SubStreamer
Access and stream your personal music library from a Subsonic-compatible server on your mobile device. Enjoy offline playback, personalized mixes, and detailed listening analytics without ads or subscriptions.
- Stream and download music library
- Offline listening with background processing
- Personalized smart mixes
- Listening analytics and scrobbling
- Playlist and library management
- Background playback with lock screen controls
- Open source
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Your music. Your server. Everywhere you go. Substreamer turns your Subsonic-compatible server into a personal streaming service. Browse, play, and download your entire music library on iPhone and iPad — free, with no ads, no subscriptions, and no data collection. Verified with Navidrome, Subsonic, Gonic, Nextcloud Music, and Ampache. Also compatible with Airsonic-Advanced, Funkwhale, Supysonic, and other Subsonic API servers. STREAM & DOWNLOAD Stream in full quality or choose a bitrate that suits your connection. Download albums and playlists for offline listening with background queue processing and automatic recovery. Substreamer switches to offline mode automatically when your server is unreachable. TUNED IN — SMART MIXES Personalised playlists powered by your listening history. Time-of-day mixes, deep cuts from similar artists, decade time machines, genre blends, favorites radio, and a custom mix builder — all generated from your own library, not an algorithm trained on someone else's taste. LISTENING ANALYTICS See your play history, top artists, albums, and songs, most active listening hours, activity heatmaps, and listening streaks. Scrobbles queue locally when you're offline and sync automatically when you reconnect. Exclude specific albums or artists so one-off plays don't skew your stats. LIBRARY MANAGEMENT Browse by album, artist, or playlist. List and grid views with alphabetical quick-scroll for large libraries. 5-star ratings and favorites sync with your server. Create and manage playlists, reorder tracks, or save your current queue as a new playlist. PLAYBACK Background playback with full lock screen and notification controls. Adjustable playback speed, shuffle, and repeat. Share albums or playlists with configurable links. BEAUTIFUL & PRIVATE Light, dark, and system themes with custom accent colors. Album art color extraction for immersive detail views. No tracking, no analytics, no account required — your music stays between you and your server. OPEN SOURCE Substreamer is open source under the GPL-3.0 license. Browse the code, report issues, or contribute at github.com/ghenry22/substreamer.
Screenshots
Verdict
The clearest difference is rating: iSub Music Streamer at 4.6 against SubStreamer's 4.0. iSub Music Streamer also leads on iOS requirement (13.0 vs 16.4). SubStreamer's advantage is monetization model (free vs paid) and update cadence (every 2 weeks vs every 3 months). On price, review sentiment, ratings volume and ads there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
iSub Music Streamer holds the better App Store score, 4.6 against 4.0. Both are backed by a comparable volume of ratings — 82 and 141 respectively. Written reviews point the same way: 74% of iSub Music Streamer's written reviews are positive against 72% of SubStreamer's.
iSub Music Streamer ships an update every 3 months, SubStreamer every 2 weeks. The most recent releases landed on October 7, 2026 and October 18, 2026 respectively.
| Parameter | iSub Music Streamer | SubStreamer |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (82 ratings) — better | 4.0 (141 ratings) |
| Positive reviews | 74.0% of reviews — better | 72.2% of reviews |
| Number of ratings | 82 | 141 — better |
| Update frequency | Every 3 months | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 13.0 — better | 16.4 |
| Further details — not scored | ||
| Size | 5 MB | 55 MB |
| Age rating | 4+ | +4 |
| Developer | Benjamin Baron | Gaven Henry |
Customer experience
iSub Music Streamer
SubStreamer
User reviews
iSub Music Streamer
From 82 App Store ratingsWhat we love
- 🚀 Seamless Subsonic integration
- 👍 Great app, works flawlessly
- 🎨 Elegant and intuitive interface
- 💾 Excellent caching and offline functionality
- 🔊 High-quality audio streaming
Room to improve
- 🐛 Crashes on iOS 8/14 updates
- 🚫 Lack of CarPlay support
- 🤔 Confusing caching/download management
- 🎨 Outdated or unappealing UI design
SubStreamer
From 141 App Store ratingsWhat we love
- 🎨 Beautiful and modern UI design
- ⚡ Clean, intuitive interface
- 🎵 Excellent Navidrome server compatibility
- 📱 Works seamlessly with self-hosted music servers
- 🔄 Reliable background playback functionality
Room to improve
- 🐛 Frequent playback failures and stalling
- 🐛 Random crashes during playback
- 🐛 Scrobbling not working reliably
- 🐛 Large file playback issues (10MB+)
- 🐛 AirPlay/Apple TV streaming broken
Bugs and requests
iSub Music Streamer
Reported bugs
3 issues- Crashes when setting up server connection
- Inconsistent behavior when switching between online/offline modes
- Cached music disappearing from device
Requested features
4 requests- Automatic bookmarking for podcasts/audiobooks
- Improved EQ and audio customization options
- Integration with other media server platforms (e.g., Plex, Emby)
- Chromecast/AirPlay support
SubStreamer
Reported bugs
18 issues- Songs fail to play without double-pressing play button
- Playback stops with 4 seconds remaining in track
- Skipping back crashes the app
- Large files (10MB+) require pause-then-play to start
- Scrobbling fails despite server support
Show 13 moreShow fewer
- AirPlay to Apple TV doesn't work
- Time display incorrect for songs over 1 hour
- Metadata loads too frequently, causing lag
- App freezes when pulling down menu on player screen
- Radio tab causes app freeze
- Occasional non-responsive behavior
- Crashes when switching between songs on cellular
- Image optimization never completes on large libraries
- Duplicate songs appear in multi-disc albums
- Offline folder structure doesn't match server
- Bluetooth playback sometimes plays two songs simultaneously
- SSL support issues in older versions
- Slow metadata loading from server
Requested features
18 requests- CarPlay support for in-car use
- Traditional Chinese language support
- Simplified Chinese language support
- All-songs library view (not just albums/artists)
- Lyrics API integration
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- Replay gain support
- Smart playlists for yearly recaps
- Batch download for offline music
- Display codec and bitrate information
- Better shuffle/random playback options
- Improved pull-down gesture for minimizing player
- Unified offline music view with filters
- Song sorting options in playlists
- Album art display in more views
- Radio station support visibility fix
- Genre sorting capability
- Lock screen playback controls
- Queue clearing functionality
In-app purchases
iSub Music Streamer
No in-app purchases
SubStreamer
No in-app purchases






