# Poseidon Synth vs VAPoly16

The clearest difference is rating: VAPoly16 at 5.0 against Poseidon Synth's 4.0. VAPoly16 also leads on review sentiment (100% vs 59%) and device support (3 vs 1). Poseidon Synth's advantage is price ($7.99 vs $14.99) and iOS requirement (12.0 vs 16.4). On ratings volume, update cadence, ads and in-app purchases there is nothing between them.

Poseidon Synth costs $7.99 and VAPoly16 $14.99 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 4.0. Both are backed by a comparable volume of ratings — 33 and 13 respectively. Written reviews point the same way: 59% of Poseidon Synth's written reviews are positive against 100% of VAPoly16's.

Poseidon Synth ships an update every 4 months, VAPoly16 every 2 months. Both last shipped on October 7, 2026.

## The numbers

| Metric | Poseidon Synth | VAPoly16 |
| --- | --- | --- |
| Price | **$7.99** | $14.99 |
| Rating | [4.0 (33 ratings)](https://appshunter.io/ios/app/poseidon-synth/id1045058006/reviews) | **[5.0 (13 ratings)](https://appshunter.io/ios/app/vapoly16/id6450654065/reviews)** |
| Number of ratings | **33** | 13 |
| Positive reviews | 58.8% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 2 months** |
| Monetization | Paid | Paid |
| Size | 328 MB | 20 MB |
| Requires iOS | **12.0** | 16.4 |
| Devices | iPad | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Harry Gohs](https://appshunter.io/developer/382428644) | [Ryo Togawa](https://appshunter.io/developer/1474193056) |

## What reviewers say

### Poseidon Synth

[App page](https://appshunter.io/ios/app/poseidon-synth/id1045058006)

Explore vast sonic landscapes with this advanced synthesizer. It combines analog synthesis with spectral modeling for unique sound design, offering powerful filters, spatialization, and a vast library of presets and sound models.

**Highlights:** Spectral model oscillator, F-Domain Filter with variable slope, Spatializer for stereo movement, Extensive sound browser, Arpeggiator with programmable sequences, Built-in effects suite

**In-app purchases:** none


### 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


## Frequently asked questions

### Is Poseidon Synth free?

Poseidon Synth costs $7.99, with no in-app purchases.

### Is VAPoly16 free?

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

### Which has better reviews, Poseidon Synth or VAPoly16?

VAPoly16 is rated higher. Poseidon Synth averages 4.0 out of 5 from 33 ratings, while VAPoly16 averages 5.0 from 13 ratings.

### Do Poseidon Synth or VAPoly16 have ads?

Neither Poseidon Synth nor VAPoly16 shows ads.

### Which is updated more often, Poseidon Synth or VAPoly16?

Poseidon Synth ships an update every 4 months, and VAPoly16 every 2 months. Most recently, Poseidon Synth was updated on October 7, 2026 and VAPoly16 on October 7, 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.*