# Keyboard Collection vs Stem Split

The clearest difference is price: Stem Split at Free against Keyboard Collection's $0.99. Keyboard Collection's advantage is rating (4.8 vs 2.6) and in-app purchases (none vs 1). On review sentiment, ratings volume and ads there is nothing between them.

Stem Split is free to download; Keyboard Collection costs $0.99 up front. Stem Split sells 1 one-off in-app purchase. Keyboard Collection asks for nothing beyond the download.

Keyboard Collection holds the better App Store score, 4.8 against 2.6. Both are backed by a comparable volume of ratings — 4 and 5 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

Keyboard Collection ships an update every 4 months, Stem Split every 17 months. The most recent releases landed on October 20, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Keyboard Collection | Stem Split |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | **[4.8 (4 ratings)](https://appshunter.io/ios/app/keyboard-collection/id1425485937/reviews)** | [2.6 (5 ratings)](https://appshunter.io/ios/app/stem-split/id6449464291/reviews) |
| Number of ratings | 4 | **5** |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 17 months |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 61 MB | 179 MB |
| Requires iOS | **8.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Robert Swinburn](https://appshunter.io/developer/1425485936) | [Mellowmuse Ltd](https://appshunter.io/developer/425710925) |

## What reviewers say

### Keyboard Collection

[App page](https://appshunter.io/ios/app/keyboard-collection/id1425485937)

Practice playing piano, electric piano, and harpsichord on your mobile device. Features realistic instrument models, 4-octave keyboards, and multitouch support for chords.

**Highlights:** Realistic instrument models, Interactive 3D view, 4-octave keyboards, Multitouch for chords, Authentic polyphonic sound, Optional note overlay

**Features:** Vision Pro support

**In-app purchases:** none


### Stem Split

[App page](https://appshunter.io/ios/app/stem-split/id6449464291)

This app separates any song into four audio stems: vocals, accompaniment, bass, and drums. All processing happens on your device, ensuring privacy and no uploads. You can then adjust the level, tempo, and pitch of these stems in real-time.

**Highlights:** Separate songs into 4 audio stems, On-device processing, Real-time level, tempo, and pitch adjustment, Import from Files app and iTunes, Supports WAV, AIFF, MP3, and MP4 formats, Export stems for sharing and other apps

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Vocal Split | $3.99 | one-time |


## Frequently asked questions

### Is Keyboard Collection free?

Keyboard Collection costs $0.99, with no in-app purchases.

### Is Stem Split free?

Stem Split is free to download, with in-app purchases available.

### Which has better reviews, Keyboard Collection or Stem Split?

Keyboard Collection is rated higher. Keyboard Collection averages 4.8 out of 5 from 4 ratings, while Stem Split averages 2.6 from 5 ratings.

### Do Keyboard Collection or Stem Split have ads?

Neither Keyboard Collection nor Stem Split shows ads.

### Which is updated more often, Keyboard Collection or Stem Split?

Keyboard Collection ships an update every 4 months, and Stem Split every 17 months. Most recently, Keyboard Collection was updated on October 20, 2026 and Stem Split on October 24, 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.*