# Poseidon Synth vs volumeCTRL

The clearest difference is rating: Poseidon Synth at 4.0 against volumeCTRL's 3.2. Poseidon Synth also leads on update cadence (every 4 months vs every 9 months) and review sentiment (59% vs 50%). volumeCTRL's advantage is price ($4.99 vs $7.99) and device support (3 vs 1). On ads, in-app purchases, monetization model and iOS requirement there is nothing between them.

Poseidon Synth costs $7.99 and volumeCTRL $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Poseidon Synth holds the better App Store score, 4.0 against 3.2. Both are backed by a comparable volume of ratings — 33 and 9 respectively. Written reviews point the same way: 59% of Poseidon Synth's written reviews are positive against 50% of volumeCTRL's.

Poseidon Synth ships an update every 4 months, volumeCTRL every 9 months. The most recent releases landed on October 20, 2026 and October 23, 2026 respectively.

## The numbers

| Metric | Poseidon Synth | volumeCTRL |
| --- | --- | --- |
| Price | $7.99 | **$4.99** |
| Rating | **[4.0 (33 ratings)](https://appshunter.io/ios/app/poseidon-synth/id1045058006/reviews)** | [3.2 (9 ratings)](https://appshunter.io/ios/app/volumectrl/id6444421682/reviews) |
| Number of ratings | **33** | 9 |
| Positive reviews | **58.8% of reviews** | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 9 months |
| Monetization | Paid | Paid |
| Size | 328 MB | 22 MB |
| Requires iOS | 12.0 | **11.0** |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Harry Gohs](https://appshunter.io/developer/382428644) | [auDSPr](https://appshunter.io/developer/1439844877) |

## 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


### volumeCTRL

[App page](https://appshunter.io/ios/app/volumectrl/id6444421682)

Gain precise control over your device's audio levels with this utility app. Adjust volume by percentage or dBFS, fine-tune with incremental steps, and temporarily dim or mute sound. Ideal for music, podcasts, and late-night media consumption.

**Highlights:** Precise volume adjustment by percentage or dBFS, Keypad for exact value input, Fine-tune volume with customizable step sizes, Temporary dim and mute functions, Seamless integration with device volume controls, Universal app for iPhone, iPad, and iPod touch

**In-app purchases:** none


## Frequently asked questions

### Is Poseidon Synth free?

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

### Is volumeCTRL free?

volumeCTRL costs $4.99, with no in-app purchases.

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

Poseidon Synth is rated higher. Poseidon Synth averages 4.0 out of 5 from 33 ratings, while volumeCTRL averages 3.2 from 9 ratings.

### Do Poseidon Synth or volumeCTRL have ads?

Neither Poseidon Synth nor volumeCTRL shows ads.

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

Poseidon Synth ships an update every 4 months, and volumeCTRL every 9 months. Most recently, Poseidon Synth was updated on October 20, 2026 and volumeCTRL on October 23, 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.*