# OnStem vs Song Separator

The clearest difference is in-app purchases: Song Separator at none against OnStem's 4. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. OnStem sells 4 in-app purchases, starting at $0.99 per month. Song Separator asks for nothing beyond the download.

OnStem ships an update every 3 weeks, Song Separator monthly. The most recent releases landed on September 9, 2026 and September 15, 2026 respectively.

## The numbers

| Metric | OnStem | Song Separator |
| --- | --- | --- |
| 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 | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | **Every 3 weeks** | Monthly |
| Monetization | — | Ad-supported |
| Size | 137 MB | 13 MB |
| Requires iOS | **18.0** | 18.4 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [阳 刘](https://appshunter.io/developer/1616314142) | [Xssemble s.r.o.](https://appshunter.io/developer/775795222) |

## What reviewers say

### OnStem

[App page](https://appshunter.io/ios/app/onstem-local-music-split/id6756013787)

**Features:** Family Sharing, Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| OnStem Pro – Monthly | $0.99 | per month |
| OnStem Pro – Quarterly | $2.39 | per 3 months |
| OnStem Pro – Annual | $8.99 | per year |
| OnStem Pro – Lifetime | $9.99 | one-time |


### 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


## Frequently asked questions

### Is OnStem free?

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

### Is Song Separator free?

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

### Do OnStem or Song Separator have ads?

Both OnStem and Song Separator show ads.

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

OnStem ships an update every 3 weeks, and Song Separator monthly. Most recently, OnStem was updated on September 9, 2026 and Song Separator on September 15, 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.*