# Stem Split vs MP3 Converter

The clearest difference is review sentiment: Stem Split at 100% against MP3 Converter's 38%. Stem Split also leads on ads (none vs shown). MP3 Converter's advantage is rating (4.2 vs 2.3) and update cadence (every 3 weeks vs every 17 months). On price, in-app purchases, monetization model and device support there is nothing between them.

Both are free to download. Stem Split sells 1 one-off in-app purchase and MP3 Converter sells 4 in-app purchases, starting at $0.99 per 7 days. Whichever you choose, the download price is not the number that matters.

MP3 Converter holds the better App Store score, 4.2 against 2.3. That said, the two scores are not equally well evidenced: MP3 Converter has 46 ratings behind it against 4, so its average is the more settled of the two. Written reviews complicate that: 100% of Stem Split's written reviews are positive against 38% of MP3 Converter's, so the app with the better star average is not the one people write more warmly about.

Stem Split ships an update every 17 months, MP3 Converter every 3 weeks. The most recent releases landed on September 15, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | Stem Split | MP3 Converter |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.3 (4 ratings)](https://appshunter.io/ios/app/stem-split/id6449464291/reviews) | **[4.2 (46 ratings)](https://appshunter.io/ios/app/mp3-converter-remove-vocals/id6450625672/reviews)** |
| Number of ratings | 4 | **46** |
| Positive reviews | **100.0% of reviews** | 38.2% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 17 months | **Every 3 weeks** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 179 MB | 143 MB |
| Requires iOS | 18.0 | **17.6** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Mellowmuse Ltd](https://appshunter.io/developer/425710925) | [Shengpu Yuedong (wuhan) Technology Co., Ltd](https://appshunter.io/developer/1895478581) |

## What reviewers say

### 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 |


### MP3 Converter

[App page](https://appshunter.io/ios/app/mp3-converter-remove-vocals/id6450625672)

This app allows you to extract audio from videos, separate vocals from instrumentals, and remove background music. It's a versatile tool for musicians and music enthusiasts to create unique audio content and practice their skills.

**Highlights:** Extract audio from videos, Separate vocals from instrumentals, Remove background music from videos, Extract song accompaniment, Convert audio formats, Save and play audio files

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Weekly Subscription | $0.99 | per 7 days |
| Audio extraction monthly VIP | $3.99 | per month |
| Pro Annual Subscription | $14.99 | per year |
| Forever Pro | $29.99 | one-time |


## Frequently asked questions

### Is Stem Split free?

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

### Is MP3 Converter free?

MP3 Converter is free to download, with in-app purchases available.

### Which has better reviews, Stem Split or MP3 Converter?

MP3 Converter is rated higher. Stem Split averages 2.3 out of 5 from 4 ratings, while MP3 Converter averages 4.2 from 46 ratings.

### Do Stem Split or MP3 Converter have ads?

MP3 Converter shows ads; Stem Split does not.

### Which is updated more often, Stem Split or MP3 Converter?

Stem Split ships an update every 17 months, and MP3 Converter every 3 weeks. Most recently, Stem Split was updated on September 15, 2026 and MP3 Converter on September 22, 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.*