# VAPoly16 vs isxynth

The clearest difference is rating: VAPoly16 at 5.0 against isxynth's 3.7. VAPoly16 also leads on update cadence (every 2 months vs every 34 months) and ratings volume (13 vs 3). isxynth's advantage is price ($7.99 vs $14.99) and iOS requirement (11.0 vs 16.4). On review sentiment, ads, in-app purchases and monetization model there is nothing between them.

VAPoly16 costs $14.99 and isxynth $7.99 up front. Neither carries in-app purchases, so what you see is what you pay.

VAPoly16 holds the better App Store score, 5.0 against 3.7. Both are backed by a comparable volume of ratings — 13 and 3 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

VAPoly16 ships an update every 2 months, isxynth every 34 months. The most recent releases landed on September 20, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | VAPoly16 | isxynth |
| --- | --- | --- |
| Price | $14.99 | **$7.99** |
| Rating | **[5.0 (13 ratings)](https://appshunter.io/ios/app/vapoly16/id6450654065/reviews)** | [3.7 (3 ratings)](https://appshunter.io/ios/app/isxynth/id6450951503/reviews) |
| Number of ratings | **13** | 3 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 34 months |
| Monetization | Paid | Paid |
| Size | 20 MB | 8 MB |
| Requires iOS | 16.4 | **11.0** |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Ryo Togawa](https://appshunter.io/developer/1474193056) | [Alexey Nadzharov](https://appshunter.io/developer/729549192) |

## What reviewers say

### VAPoly16

[App page](https://appshunter.io/ios/app/vapoly16/id6450654065)

This app is a virtual analog polyphonic synthesizer for iOS and Mac. It offers 16 voices, a sequencer, and various audio effects. It can be used as a standalone application or as an AudioUnit Extension.

**Highlights:** 16 voice virtual analog synthesizer, Bitimbral sound design, Sequencer with piano roll and automation, Multiple audio effects (delay, reverb, chorus, etc.), Standalone and AUv3 extension support, Ableton Link and MIDI connectivity, Audio file export

**Features:** Vision Pro support

**In-app purchases:** none


### isxynth

[App page](https://appshunter.io/ios/app/isxynth/id6450951503)

This music effect plugin allows spectral cross synthesis and morphing between two input signals. It separates noise and tone components, offering controls for blending, freezing, and time-based delays. Gestures on controls can be recorded and played back for dynamic sound shaping.

**Highlights:** Spectral cross synthesis, Morphing between two input signals, Noise and tone component blending, Freeze control for spectral blurring, 3-second delay lines per input, Gesture recording and playback

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

**In-app purchases:** none


## Frequently asked questions

### Is VAPoly16 free?

VAPoly16 costs $14.99, with no in-app purchases.

### Is isxynth free?

isxynth costs $7.99, with no in-app purchases.

### Which has better reviews, VAPoly16 or isxynth?

VAPoly16 is rated higher. VAPoly16 averages 5.0 out of 5 from 13 ratings, while isxynth averages 3.7 from 3 ratings.

### Do VAPoly16 or isxynth have ads?

Neither VAPoly16 nor isxynth shows ads.

### Which is updated more often, VAPoly16 or isxynth?

VAPoly16 ships an update every 2 months, and isxynth every 34 months. Most recently, VAPoly16 was updated on September 20, 2026 and isxynth on September 24, 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.*