# Song Separator vs STEM

The clearest difference is in-app purchases: Song Separator at none against STEM's 6. STEM's advantage is ads (none vs shown) and update cadence (every 9 days vs every 2 months). On price and device support there is nothing between them.

Both are free to download. STEM sells 6 in-app purchases, starting at $7.99 per month. Song Separator asks for nothing beyond the download.

Song Separator ships an update every 2 months, STEM every 9 days. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Song Separator | STEM |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (1 ratings)](https://appshunter.io/ios/app/song-separator/id6769821246/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Every 9 days** |
| Monetization | Ad-supported | — |
| Size | 13 MB | 3 MB |
| Requires iOS | 18.4 | **16.4** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Xssemble s.r.o.](https://appshunter.io/developer/775795222) | [CEM OZAN DUZENCI](https://appshunter.io/developer/6782101402) |

## What reviewers say

### Song Separator

[App page](https://appshunter.io/ios/app/song-separator/id6769821246)

This application uses advanced audio processing to separate a song into its individual components. You can isolate vocals, drums, bass, and other instruments into separate files for further editing or analysis.

**Highlights:** Split songs into individual audio tracks, Separate vocals, Isolate drums, Extract bass lines, Extract other instruments, Advanced audio processing algorithms

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

**In-app purchases:** none


### STEM

[App page](https://appshunter.io/ios/app/stem-x-vocal-isolation/id6791375004)

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Starter Monthly | $7.99 | per month |
| Basic Plan | $12.99 | per month |
| Pro Plan | $24.99 | per month |
| Basic Plan | $99.99 | per year |
| Pro Plan | $199.99 | per year |
| Energy Token | $4.99 | one-time |


## Frequently asked questions

### Is Song Separator free?

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

### Is STEM free?

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

### Do Song Separator or STEM have ads?

Song Separator shows ads; STEM does not.

### Which is updated more often, Song Separator or STEM?

Song Separator ships an update every 2 months, and STEM every 9 days. Most recently, Song Separator was updated on October 24, 2026 and STEM on October 25, 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.*