Harmonic Violin Tuner vs ExtVocal Pro
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Harmonic Violin Tuner
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You can tune your violin using the standard A440 tuning or classical Bach time tuning using the real violin sound. You can also tune your violin using a frequency from 428 hertz to 452 hertz as the A note. With A440 and harmonic tuning, you can play the single pitches G, D, A and E with a real violin sound. From 428 hertz to 452 hertz tunings you can play the pitches G, D, A and E with a sine wave generator. The program tells you quickly and precisely with the accuracy of a tenth-semitone step when the violin is in tune. You can also use the program to tune other instruments such as guitar or ukulele.
ExtVocal Pro
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.
- Source separation
- 5 stem export
- Vocals extraction
- Drums extraction
- Bass extraction
- Piano extraction
- Other instrument extraction
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Extvocal Pro is an app for music source separation. It separates an audio file into 5 stems - vocals, drums, bass, piano and other. You can export the separated stems into files.
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | Harmonic Violin Tuner | ExtVocal Pro |
|---|---|---|
| Price | $2.99 | Free — better |
| Rating | — | 4.3 (10 ratings) — better |
| Positive reviews | — | 90.9% of reviews |
| Number of ratings | — | 10 — better |
| Update frequency | Every 38 months | Monthly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.6 | 15.6 |
| Further details — not scored | ||
| Size | 28 MB | 343 MB |
| Age rating | 4+ | 4+ |
| Developer | Artificial Intelligence Technologies J.K. Oy | sayitsforever |
In-app purchases
Harmonic Violin Tuner
No in-app purchases
ExtVocal Pro
No in-app purchases
Questions
Is Harmonic Violin Tuner free?
Is ExtVocal Pro free?
Do Harmonic Violin Tuner or ExtVocal Pro have ads?
Which is updated more often, Harmonic Violin Tuner or ExtVocal Pro?
Other comparisons
