# Song Sift vs OnStem

The clearest difference is ads: Song Sift at none against OnStem's shown. Song Sift also leads on iOS requirement (15.0 vs 18.0). OnStem's advantage is update cadence (every 3 weeks vs every 2 months). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Song Sift sells 2 in-app purchases, starting at $2.99 per month and OnStem sells 4 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

Song Sift ships an update every 2 months, OnStem every 3 weeks. The most recent releases landed on November 4, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Song Sift | OnStem |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | Freemium | — |
| Size | 85 MB | 137 MB |
| Requires iOS | **15.0** | 18.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Studio Sol Comunicacao Digital LTDA](https://appshunter.io/developer/480625284) | [阳 刘](https://appshunter.io/developer/1616314142) |

## What reviewers say

### Song Sift

[App page](https://appshunter.io/ios/app/song-sift-stem-splitter/id6741689757)

This app uses advanced AI to separate vocals and instruments from any song, allowing you to create custom mixes. Easily adjust stem volumes, mute parts, or use presets for karaoke and backing tracks. Organize and download your creations in high quality.

**Highlights:** Automatic vocal and instrument separation, Customizable mixes with stem control, Preset mixes for quick creation, High-quality audio exports, Personal music library

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Song Sift Pro | $2.99 | per month |
| Song Sift Pro | $29.99 | per year |


### 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 |


## Frequently asked questions

### Is Song Sift free?

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

### Is OnStem free?

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

### Do Song Sift or OnStem have ads?

OnStem shows ads; Song Sift does not.

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

Song Sift ships an update every 2 months, and OnStem every 3 weeks. Most recently, Song Sift was updated on November 4, 2026 and OnStem on November 5, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*