Comparison

iPeng vs SlimLibrary

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

iPeng

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
Read full description

iPeng 9, the music remote for the Logitech® Squeezebox™, has been designed for the latest iOS versions and fully supports all iPhone and iPad form factors. iPeng 9 is a remote control app that will work all over your home with your iPhone, iPad, iPod touch and Apple Watch. You can also purchase an additional playback capability as an In-App-Purchase that will turn your iPhone or iPad into a full-blown music player for your Squeezebox Server or Roon Server. *** New in iPeng 9 *** • Support of iPhone 11, Pro, X/XS and XS Max • Latest Apple Watch support including Series 5, under watchOS 3 and newer • Today Widget to use iPeng in Notification Center and on the lock screen. • Full multitasking support on iPad and iPad Pro, including Split View and Slide Over under iOS 9 and newer. *** What’s new compared to iPeng Classic? *** * Full Support of latest iOS Versions * • iPeng has been redesigned, matching Apple's flat UI design for an up-to-date appeal, and uses a modernized platform and code base for continuous support of new iOS features. * Universal App * • iPeng 9 is a universal app for both iPhone, iPad and Apple Watch, so you only have to purchase the app once. Older iPeng versions had separate apps for iPhone and iPad. * Customizable * • The customizable main menu allows you to show different menu items in your top level menu or hide things that you don’t need. • Change the structure of your main menu through a simple drag-and-drop interface. • You can select a bright or dark color scheme for iPeng, and iPeng can even automatically select it based on your lighting conditions. * Easier Multi-Room Control * • The redesigned MultiPlayer Control simplifies handling many players. • QuickSwitch lets you move playlists from one player to another easily with a swipe of your finger. • Have direct access to Power/Volume for each connected player and change other player settings in the player details. • Group players to synchronized groups. Jointly control playback and volume for these groups and move players between them using drag-and-drop or a toolbar. • Power all players in a group off with a single click when you leave. * Manage Playlists and Favorites * • View, save, change and rearrange not only your current playlist but also saved playlists and favorites. * Works with Logitech Squeezebox and compatible players * • iPeng 9 works with all Logitech Squeezebox Players as well as many Squeezebox-compatible players like Innuos Zen, the SOtM sMS-1000SQ and sMS-100 or VortexBox players. • With iPeng Playback, iPeng also works as a player with Roon. *** Enjoy the familiar features and comfort of iPeng. *** * Easy and Fast to Use * • The functionality of iPeng is optimized for speed of use guaranteeing long-term fun. • Built-in Tutorials help you to learn iPeng’s operation. * Explore Your Music Library (1) * • Browse your own files by categories like Albums, Artists, Genres or simply search for your music. * Explore Remote Services * • You get access to a whole world of internet radio and music services like Rhapsody™ and Spotify™ and have control over them as if they were in your own library. * Use 3rd Party Plugins (2) * • iPeng supports a growing number of 3rd party plugins for Squeezebox™, e.g. CustomBrowse, TrackStat, Music and Artist Information and many more. * Use MySqueezebox.com * • iPeng 9 doesn’t require a server to operate your Squeezebox, it also supports Logitech’s MySqueezbox.com online service. Note: This does not apply to the Playback functionality. iPeng requires one or more Squeezebox™ or any compatible hard- or software player. Squeezebox™ is a trademark of Logitech. (1) LogitechMedia Server/Squeezebox Server version 7.5 or newer available for free from mysqueezebox.com/download or downloads.slimdevices.com/nightly/ (2) Installation of 3rd party plugins in Logitech Media Server required.

About

SlimLibrary

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
Read full description

SlimLibrary is a player and remote control for the Logitech© Media server. Use it to: · Browse your entire media library · Control all your players. · View album images, like the back cover of the album, or the inner sleeve. · Listen to music on your IOS device. · Read the album information that you have uploaded to the server. · View videos on your ios device. · Stream any LMS supported streaming service to your iOS device. SlimLibrary uses a server plugin module to provide additional features, otherwise not available from the Logitech© Media server. (SlimLibrary Plugin currently supports LMS 7.9.1 and above) Browsing You can browse your music library by a selected artist, composer, genre or year, or view the newest albums uploaded to your server. Combine an artist with a genre or year to fine tune your selection. Choose from multiple possible sort fields to sort your selection by album, artist, year and various combinations. The SlimLibrary plugin allows you even greater control of your selection by combining multiple artists, composers, genres or years, in a single selection and letting you select an ascending or descending sort order. In addition the plugin also lets you sort by date added to the server. Now you can find those lost albums that you have forgotten about. View album Images* The SlimLibrary plugin gives you the ability to view any images you have uploaded to the album folder on the server. Now you can upload and view the back cover or inner sleeve of the album or cd, and view it on your ios device. Scan the booklet that comes with your cd and upload it to your server to view and read it on your device. Play videos* SlimLibrary will let you view and play videos the you have uploaded to your server. Video formats supported are the iOS supported formats. Read album information* You can upload a text file with album information and display it on your device with the plugin installed. Put the liner notes in a info.txt file, upload to the server in the album folder and view it on your device. If you have the "Music and Artist information" plugin installed, the app will display album reviews. Today View Quickly acces the main player controls from the today view. Increase or decrease volume, pause or play, go to to next or previous track and open SlimLibrary app form the today widget. *feature provided by SlimLibrary plugin module. https://bitbucket.org/matglo/slimlibraryplugin/wiki/Home The SLimLibrary plugin support LMS 7.9.1 and above. Logitech© is either a registered trademark or trademark of Logitech in the United States and/or other countries. All other trademarks are the property of their respective owners.

Screenshots

iPeng4 screens
SlimLibrary4 screens

Verdict

The call

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.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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.

Scorecard7 real differences · 3 level
iPeng versus SlimLibrary: the parameters behind the verdict, then further details
ParameteriPengSlimLibrary
Price$8.99$6.99 — better
Rating4.7 (1K ratings) — better3.3 (3 ratings)
Positive reviews76.5% of reviews — better40.0% of reviews
Number of ratings1K — better3
Update frequencyEvery 5 weeksEvery 3 weeks — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases — betterPaid
DevicesiPhone, iPad, iPod, Apple WatchiPhone, iPad, iPod, Apple TV
Requires iOS9.3 — better12.0
Further details — not scored
Size36 MB54 MB
Age rating17+4+
DeveloperPenguinLovesMusic.comMatglo Solutions LLC

Customer experience

iPeng

All ratings1,018 ratings
Positive93.8%
Neutral3.2%
Negative2.9%
Written reviews251 reviews
Positive76.5%
Neutral7.2%
Negative16.3%

SlimLibrary

All ratings3 ratings
Positive66.7%
Neutral0.0%
Negative33.3%
Written reviews5 reviews
Positive40.0%
Neutral0.0%
Negative60.0%

Bugs and requests

iPeng

Reported bugs

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

Requested features

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

SlimLibrary

Not enough reviews yet to summarise bugs or requests.

In-app purchases

1 purchases

iPeng

One-time1
  • iPeng Playback$4.99
None

SlimLibrary

No in-app purchases

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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