# Harmonic Violin Tuner vs ExtVocal Pro

The clearest difference is price: ExtVocal Pro at Free against Harmonic Violin Tuner's $2.99. ExtVocal Pro also leads on update cadence (monthly vs every 38 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

ExtVocal Pro is free to download; Harmonic Violin Tuner costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Harmonic Violin Tuner ships an update every 38 months, ExtVocal Pro monthly. The most recent releases landed on September 29, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | Harmonic Violin Tuner | ExtVocal Pro |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | — | **[4.3 (10 ratings)](https://appshunter.io/ios/app/extvocal-pro-spatial-audio/id1561597264/reviews)** |
| Number of ratings | — | **10** |
| Positive reviews | — | 90.9% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 38 months | **Monthly** |
| Monetization | — | Free |
| Size | 28 MB | 343 MB |
| Requires iOS | 15.6 | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Artificial Intelligence Technologies J.K. Oy](https://appshunter.io/developer/1050973715) | [sayitsforever](https://appshunter.io/developer/336481184) |

## What reviewers say

### Harmonic Violin Tuner

[App page](https://appshunter.io/ios/app/harmonic-violin-tuner/id1465154180)

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

**In-app purchases:** none


### ExtVocal Pro

[App page](https://appshunter.io/ios/app/extvocal-pro-spatial-audio/id1561597264)

This application allows users to separate audio files into five distinct stems: vocals, drums, bass, piano, and other. You can then export these individual stems as separate files for further use.

**Highlights:** Source separation, 5 stem export, Vocals extraction, Drums extraction, Bass extraction, Piano extraction, Other instrument extraction

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Harmonic Violin Tuner free?

Harmonic Violin Tuner costs $2.99, with no in-app purchases.

### Is ExtVocal Pro free?

ExtVocal Pro is free to download, with no in-app purchases.

### Do Harmonic Violin Tuner or ExtVocal Pro have ads?

Neither Harmonic Violin Tuner nor ExtVocal Pro shows ads.

### Which is updated more often, Harmonic Violin Tuner or ExtVocal Pro?

Harmonic Violin Tuner ships an update every 38 months, and ExtVocal Pro monthly. Most recently, Harmonic Violin Tuner was updated on September 29, 2026 and ExtVocal Pro on October 21, 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.*