# Poseidon Synth vs Sparkverb

The clearest difference is price: Poseidon Synth at $7.99 against Sparkverb's $29.99. Poseidon Synth also leads on ratings volume (33 vs 4). Sparkverb's advantage is rating (4.8 vs 4.0) and device support (3 vs 1). On update cadence, ads, in-app purchases and monetization model there is nothing between them.

Poseidon Synth costs $7.99 and Sparkverb $29.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Sparkverb holds the better App Store score, 4.8 against 4.0. That said, the two scores are not equally well evidenced: Poseidon Synth has 33 ratings behind it against 4, so its average is the more settled of the two.

Poseidon Synth ships an update every 4 months, Sparkverb every 3 months. The most recent releases landed on August 4, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | Poseidon Synth | Sparkverb |
| --- | --- | --- |
| Price | **$7.99** | $29.99 |
| Rating | [4.0 (33 ratings)](https://appshunter.io/ios/app/poseidon-synth/id1045058006/reviews) | **[4.8 (4 ratings)](https://appshunter.io/ios/app/sparkverb/id1552213061/reviews)** |
| Number of ratings | **33** | 4 |
| Positive reviews | 58.8% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 3 months** |
| Monetization | Paid | Paid |
| Size | 328 MB | 101 MB |
| Requires iOS | 12.0 | **9.3** |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Harry Gohs](https://appshunter.io/developer/382428644) | [UVI](https://appshunter.io/developer/1108452322) |

## 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


### Sparkverb

[App page](https://appshunter.io/ios/app/sparkverb/id1552213061)

This advanced audio plugin offers innovative algorithmic reverb with modern controls for enhanced usability and creative freedom. It delivers breathtaking sound quality and remarkable CPU efficiency for various music production needs.

**Highlights:** Cutting-edge algorithmic design, Modern and innovative controls, Breathtaking sound quality, Remarkable CPU efficiency, Versatile for ensembles and sound design, Enhances usability and creative freedom

**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 Sparkverb free?

Sparkverb costs $29.99, with no in-app purchases.

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

Sparkverb is rated higher. Poseidon Synth averages 4.0 out of 5 from 33 ratings, while Sparkverb averages 4.8 from 4 ratings.

### Do Poseidon Synth or Sparkverb have ads?

Neither Poseidon Synth nor Sparkverb shows ads.

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

Poseidon Synth ships an update every 4 months, and Sparkverb every 3 months. Most recently, Poseidon Synth was updated on August 4, 2026 and Sparkverb on September 29, 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.*