# SubStreamer vs Koel Player

The clearest difference is price: SubStreamer at Free against Koel Player's $9.99. SubStreamer also leads on ratings volume (131 vs 1) and review sentiment (72% vs 50%). Koel Player's advantage is rating (5.0 vs 4.0). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

SubStreamer is free to download; Koel Player costs $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Koel Player holds the better App Store score, 5.0 against 4.0. That said, the two scores are not equally well evidenced: SubStreamer has 131 ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 72% of SubStreamer's written reviews are positive against 50% of Koel Player's, so the app with the better star average is not the one people write more warmly about.

SubStreamer ships an update every 2 weeks, Koel Player every 2 months. The most recent releases landed on September 22, 2026 and September 16, 2026 respectively.

## The numbers

| Metric | SubStreamer | Koel Player |
| --- | --- | --- |
| Price | **Free** | $9.99 |
| Rating | [4.0 (131 ratings)](https://appshunter.io/ios/app/substreamer/id1012991665/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/koel-player/id1576886982/reviews)** |
| Number of ratings | **131** | 1 |
| Positive reviews | **72.4% of reviews** | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 2 months |
| Monetization | **Free** | Paid |
| Size | 54 MB | 25 MB |
| Requires iOS | 16.4 | **16.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Gaven Henry](https://appshunter.io/developer/925249622) | [An Phan](https://appshunter.io/developer/1576886984) |

## What reviewers say

### SubStreamer

[App page](https://appshunter.io/ios/app/substreamer/id1012991665)

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.

**Highlights:** 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

**Features:** macOS Compatibility, Siri integration, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 🎨 Beautiful and modern UI design
- ⚡ Clean, intuitive interface
- 🎵 Excellent Navidrome server compatibility
- 📱 Works seamlessly with self-hosted music servers
- 🔄 Reliable background playback functionality

**What reviewers complain about**

- 🐛 Frequent playback failures and stalling
- 🐛 Random crashes during playback
- 🐛 Scrobbling not working reliably
- 🐛 Large file playback issues (10MB+)
- 🐛 AirPlay/Apple TV streaming broken

**Reported bugs**

- 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

**Requested features**

- 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


### Koel Player

[App page](https://appshunter.io/ios/app/koel-player/id1576886982)

Stream your personal music library from your self-hosted Koel server. Enjoy features like queueing, playlist management, and lyrics. Cache songs for offline playback.

**Highlights:** Stream from Koel server, Queue and play music, Like/unlike songs, Playlist manipulation, View lyrics and media info, Cache music for offline playback

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is SubStreamer free?

SubStreamer is free to download, with no in-app purchases.

### Is Koel Player free?

Koel Player costs $9.99, with no in-app purchases.

### Which has better reviews, SubStreamer or Koel Player?

Koel Player is rated higher. SubStreamer averages 4.0 out of 5 from 131 ratings, while Koel Player averages 5.0 from 1 ratings.

### Do SubStreamer or Koel Player have ads?

Neither SubStreamer nor Koel Player shows ads.

### Which is updated more often, SubStreamer or Koel Player?

SubStreamer ships an update every 2 weeks, and Koel Player every 2 months. Most recently, SubStreamer was updated on September 22, 2026 and Koel Player on September 16, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*