# SlimLibrary vs TreadTunes

The clearest difference is price: TreadTunes at Free against SlimLibrary's $6.99. TreadTunes also leads on rating (5.0 vs 3.3). SlimLibrary's advantage is update cadence (every 3 weeks vs every 27 months) and device support (4 vs 1). On ratings volume, ads and in-app purchases there is nothing between them.

TreadTunes is free to download; SlimLibrary costs $6.99 up front. Neither carries in-app purchases, so what you see is what you pay.

TreadTunes holds the better App Store score, 5.0 against 3.3. Both are backed by a comparable volume of ratings — 3 and 4 respectively.

SlimLibrary ships an update every 3 weeks, TreadTunes every 27 months. The most recent releases landed on October 24, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | SlimLibrary | TreadTunes |
| --- | --- | --- |
| Price | $6.99 | **Free** |
| Rating | [3.3 (3 ratings)](https://appshunter.io/ios/app/slimlibrary/id1022479972/reviews) | **[5.0 (4 ratings)](https://appshunter.io/ios/app/treadtunes/id6446474915/reviews)** |
| Number of ratings | 3 | **4** |
| Positive reviews | 40.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 27 months |
| Monetization | Paid | **Free** |
| Size | 54 MB | 2 MB |
| Requires iOS | **12.0** | 16.0 |
| Devices | **iPhone, iPad, iPod, Apple TV** | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [Matglo Solutions LLC](https://appshunter.io/developer/891063596) | [Kyler Knebel](https://appshunter.io/developer/1459478461) |

## What reviewers say

### 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


### TreadTunes

[App page](https://appshunter.io/ios/app/treadtunes/id6446474915)

Sync your workout intensity with your favorite music. Connect to Spotify and automatically adjust song tempo to match your walking, jogging, or running pace.

**Highlights:** Tempo matching to music, Spotify integration, Automatic pace adjustment, Supports walking, jogging, running

**In-app purchases:** none


## Frequently asked questions

### Is SlimLibrary free?

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

### Is TreadTunes free?

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

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

TreadTunes is rated higher. SlimLibrary averages 3.3 out of 5 from 3 ratings, while TreadTunes averages 5.0 from 4 ratings.

### Do SlimLibrary or TreadTunes have ads?

Neither SlimLibrary nor TreadTunes shows ads.

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

SlimLibrary ships an update every 3 weeks, and TreadTunes every 27 months. Most recently, SlimLibrary was updated on October 24, 2026 and TreadTunes on October 20, 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.*