# Laplace vs Poseidon Synth

The clearest difference is rating: Laplace at 5.0 against Poseidon Synth's 4.0. Laplace also leads on review sentiment (90% vs 59%) and update cadence (every 6 weeks vs every 4 months). On price, ratings volume, ads and in-app purchases there is nothing between them.

Laplace costs $8.00 and Poseidon Synth $7.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Laplace holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 36 and 33 respectively. Written reviews point the same way: 90% of Laplace's written reviews are positive against 59% of Poseidon Synth's.

Laplace ships an update every 6 weeks, Poseidon Synth every 4 months. The most recent releases landed on October 21, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Laplace | Poseidon Synth |
| --- | --- | --- |
| Price | $8.00 | **$7.99** |
| Rating | **[5.0 (36 ratings)](https://appshunter.io/ios/app/laplace-auv3-plug-in-synth/id920832974/reviews)** | [4.0 (33 ratings)](https://appshunter.io/ios/app/poseidon-synth/id1045058006/reviews) |
| Number of ratings | **36** | 33 |
| Positive reviews | **89.8% of reviews** | 58.8% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 4 months |
| Monetization | Paid | Paid |
| Size | 7 MB | 328 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | **iPhone, iPad, iPod** | iPad |
| Age rating | 4+ | 4+ |
| Developer | [iceWorks, Inc.](https://appshunter.io/developer/347507439) | [Harry Gohs](https://appshunter.io/developer/382428644) |

## What reviewers say

### Laplace

[App page](https://appshunter.io/ios/app/laplace-auv3-plug-in-synth/id920832974)

This app is a physical modeling synthesizer that allows users to create a wide range of sounds, from strings and pipes to metallic textures. It provides tools for detailed sound shaping and is compatible with AUv3 environments.

**Highlights:** AUv3-compatible synthesizer, Physical modeling sound engine, Bowed string emulation, Plucked string emulation, Blown pipe emulation, Metallic texture generation, Detailed sound shaping tools

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

**In-app purchases:** none


### 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


## Frequently asked questions

### Is Laplace free?

Laplace costs $8.00, with no in-app purchases.

### Is Poseidon Synth free?

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

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

Laplace is rated higher. Laplace averages 5.0 out of 5 from 36 ratings, while Poseidon Synth averages 4.0 from 33 ratings.

### Do Laplace or Poseidon Synth have ads?

Neither Laplace nor Poseidon Synth shows ads.

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

Laplace ships an update every 6 weeks, and Poseidon Synth every 4 months. Most recently, Laplace was updated on October 21, 2026 and Poseidon Synth on October 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.*