# iPeng vs SlimLibrary

The clearest difference is rating: iPeng at 4.7 against SlimLibrary's 3.3. iPeng also leads on review sentiment (76% vs 40%) and ratings volume (1K vs 3). SlimLibrary's advantage is in-app purchases (none vs 1) and price ($6.99 vs $8.99). On update cadence, ads and device support there is nothing between them.

iPeng costs $8.99 and SlimLibrary $6.99 up front. iPeng sells 1 one-off in-app purchase. SlimLibrary asks for nothing beyond the download.

iPeng holds the better App Store score, 4.7 against 3.3. That said, the two scores are not equally well evidenced: iPeng has 1K ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 76% of iPeng's written reviews are positive against 40% of SlimLibrary's.

iPeng ships an update every 5 weeks, SlimLibrary every 3 weeks. The most recent releases landed on September 28, 2026 and June 11, 2026 respectively.

## The numbers

| Metric | iPeng | SlimLibrary |
| --- | --- | --- |
| Price | $8.99 | **$6.99** |
| Rating | **[4.7 (1K ratings)](https://appshunter.io/ios/app/ipeng/id767266886/reviews)** | [3.3 (3 ratings)](https://appshunter.io/ios/app/slimlibrary/id1022479972/reviews) |
| Number of ratings | **1K** | 3 |
| Positive reviews | **76.5% of reviews** | 40.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 3 weeks** |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 36 MB | 54 MB |
| Requires iOS | **9.3** | 12.0 |
| Devices | iPhone, iPad, iPod, Apple Watch | iPhone, iPad, iPod, Apple TV |
| Age rating | 17+ | 4+ |
| Developer | [PenguinLovesMusic.com](https://appshunter.io/developer/296941579) | [Matglo Solutions LLC](https://appshunter.io/developer/891063596) |

## What reviewers say

### iPeng

[App page](https://appshunter.io/ios/app/ipeng/id767266886)

Control your Squeezebox or Roon music server with this remote app. Manage playlists, control multi-room playback, and even turn your device into a music player with an in-app purchase. Optimized for the latest iOS devices and features.

**Highlights:** Squeezebox and Roon server control, Multi-room playback management, Playlist and favorites management, Customizable main menu, Today Widget and Apple Watch support, Optional playback capability via IAP

**Features:** macOS Compatibility, Family Sharing, Apple Watch app, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| iPeng Playback | $4.99 | one-time |

**What reviewers like**

- 🚀 Best app for controlling Squeezebox
- 👍 Excellent functionality and interface
- 🎨 Customizable and flexible
- 💻 Works across Apple devices
- 🔊 Supports high-res audio

**What reviewers complain about**

- 🐛 Occasional bugs and glitches
- 🔁 Inconsistent behavior when switching between players
- 🖼️ Artwork issues with streaming services
- 🤖 Outdated or unintuitive UI in places
- 💰 Expensive for some users

**Reported bugs**

- Album playback issues
- Disconnection problems with LMS server
- Inability to log in after updates
- Syncing problems with non-Squeezebox devices

**Requested features**

- iOS 18 widget support
- Improved playlist management
- Support for Asian languages
- Built-in VPN for remote access
- Apple TV app version


### SlimLibrary

[App page](https://appshunter.io/ios/app/slimlibrary/id1022479972)

Access and control your Logitech Media Server library. Browse music and videos, view album art and liner notes, and stream content to your iOS device.

**Highlights:** Browse entire media library, Control all players, View album images and liner notes, Listen to music on iOS device, View videos on iOS device, Stream LMS supported services, Today View widget for quick controls

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is iPeng free?

iPeng costs $8.99, and also offers in-app purchases.

### Is SlimLibrary free?

SlimLibrary costs $6.99, with no in-app purchases.

### Which has better reviews, iPeng or SlimLibrary?

iPeng is rated higher. iPeng averages 4.7 out of 5 from 1K ratings, while SlimLibrary averages 3.3 from 3 ratings.

### Do iPeng or SlimLibrary have ads?

Neither iPeng nor SlimLibrary shows ads.

### Which is updated more often, iPeng or SlimLibrary?

iPeng ships an update every 5 weeks, and SlimLibrary every 3 weeks. Most recently, iPeng was updated on September 28, 2026 and SlimLibrary on June 11, 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.*