# SoundBow vs VAPolyMk4

The clearest difference is price: SoundBow at $1.99 against VAPolyMk4's $14.99. SoundBow also leads on ratings volume (13 vs 2) and iOS requirement (11.0 vs 16.6). VAPolyMk4's advantage is review sentiment (100% vs 63%) and rating (5.0 vs 4.7). On update cadence, ads, in-app purchases and monetization model there is nothing between them.

SoundBow costs $1.99 and VAPolyMk4 $14.99 up front. Neither carries in-app purchases, so what you see is what you pay.

VAPolyMk4 holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: SoundBow has 13 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 63% of SoundBow's written reviews are positive against 100% of VAPolyMk4's.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 21, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | SoundBow | VAPolyMk4 |
| --- | --- | --- |
| Price | **$1.99** | $14.99 |
| Rating | [4.7 (13 ratings)](https://appshunter.io/ios/app/soundbow/id1069359097/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/vapolymk4/id6753038075/reviews)** |
| Number of ratings | **13** | 2 |
| Positive reviews | 63.3% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | Paid | Paid |
| Size | 13 MB | 20 MB |
| Requires iOS | **11.0** | 16.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [Agoston Nagy](https://appshunter.io/developer/985925318) | [Ryo Togawa](https://appshunter.io/developer/1474193056) |

## What reviewers say

### SoundBow

[App page](https://appshunter.io/ios/app/soundbow/id1069359097)

Create music by drawing curves and gestural movements on a clean interface. Record your own sounds, build melodies, and export compositions as audio files. This app offers a unique, interactive approach to music production.

**Highlights:** Drawing-based music creation, Gesture-based sound manipulation, Record and use own sounds, Export compositions as audio, Rescale instrument elements

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

**In-app purchases:** none


### VAPolyMk4

[App page](https://appshunter.io/ios/app/vapolymk4/id6753038075)

This app is a powerful bi-timbral polyphonic synthesizer with advanced features like output morphing and a ring modulator. It offers extensive sound design capabilities with multiple oscillators, filters, and envelopes, and can be used standalone or as an AudioUnit Extension.

**Highlights:** Bi-timbral polyphonic synthesis, Output morphing and ring modulator, Multiple oscillators, filters, and envelopes, Standalone and AudioUnit Extension (AUv3) support, Built-in effects and piano roll sequencer, MIDI 2.0 and Ableton Link support, iCloud Drive for project sharing

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is SoundBow free?

SoundBow costs $1.99, with no in-app purchases.

### Is VAPolyMk4 free?

VAPolyMk4 costs $14.99, with no in-app purchases.

### Which has better reviews, SoundBow or VAPolyMk4?

VAPolyMk4 is rated higher. SoundBow averages 4.7 out of 5 from 13 ratings, while VAPolyMk4 averages 5.0 from 2 ratings.

### Do SoundBow or VAPolyMk4 have ads?

Neither SoundBow nor VAPolyMk4 shows ads.

### Which is updated more often, SoundBow or VAPolyMk4?

SoundBow ships an update every 2 months, and VAPolyMk4 every 2 months. Most recently, SoundBow was updated on October 21, 2026 and VAPolyMk4 on October 2, 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.*