# 76477 Complex Sound Synth vs ThermoSynth

The clearest difference is price: 76477 Complex Sound Synth at $2.99 against ThermoSynth's $34.99. 76477 Complex Sound Synth also leads on device support (3 vs 1). ThermoSynth's advantage is rating (5.0 vs 3.9) and iOS requirement (9.3 vs 12.0). On review sentiment, ratings volume, update cadence and ads there is nothing between them.

76477 Complex Sound Synth costs $2.99 and ThermoSynth $34.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ThermoSynth holds the better App Store score, 5.0 against 3.9. Both are backed by a comparable volume of ratings — 9 and 4 respectively. Written reviews split almost evenly too, at 50% and 50% positive.

76477 Complex Sound Synth ships an update every 3 months, ThermoSynth every 2 months. The most recent releases landed on October 21, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | 76477 Complex Sound Synth | ThermoSynth |
| --- | --- | --- |
| Price | **$2.99** | $34.99 |
| Rating | [3.9 (9 ratings)](https://appshunter.io/ios/app/76477-complex-sound-synth/id837866239/reviews) | **[5.0 (4 ratings)](https://appshunter.io/ios/app/thermosynth/id1619491705/reviews)** |
| Number of ratings | **9** | 4 |
| Positive reviews | 50.0% of reviews | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | Paid | Paid |
| Size | 4 MB | 25 MB |
| Requires iOS | 12.0 | **9.3** |
| Devices | **iPhone, iPad, iPod** | iPad |
| Age rating | 4+ | 4+ |
| Developer | [Black Cat Systems](https://appshunter.io/developer/301047032) | [SonicPlanet Audio Video Teknolojileri Anonim Sti.](https://appshunter.io/developer/946568989) |

## What reviewers say

### 76477 Complex Sound Synth

[App page](https://appshunter.io/ios/app/76477-complex-sound-synth/id837866239)

Create complex sound effects and music with a powerful synthesizer inspired by vintage hardware. Offers extensive modulation, noise generation, and customizable envelopes. Easily share your creations and control it with MIDI devices.

**Highlights:** Three oscillators with multiple wave types, Modulation capabilities for oscillators, Adjustable noise generator with filter, Configurable ADSR envelope, Unlimited sound effect generator boards, MIDI input support, Export/import sound effect boards

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

**In-app purchases:** none


### ThermoSynth

[App page](https://appshunter.io/ios/app/thermosynth/id1619491705)

This app is a generative synthesizer that creates evolving sonic structures inspired by thermodynamic systems. It features a self-regulating hyper oscillator engine with a feedback matrix and stochastic modulators for unique, never-repeating drone synthesis and organic textures.

**Highlights:** Self-regulating hyper oscillator engine, Generative synthesis at waveform level, 4x4 feedback matrix for oscillator interaction, Stochastic modulators for sonic changes, User-controlled injections for system perturbation, MPE support, High-resolution rotary encoder MIDI mapping

**In-app purchases:** none


## Frequently asked questions

### Is 76477 Complex Sound Synth free?

76477 Complex Sound Synth costs $2.99, with no in-app purchases.

### Is ThermoSynth free?

ThermoSynth costs $34.99, with no in-app purchases.

### Which has better reviews, 76477 Complex Sound Synth or ThermoSynth?

ThermoSynth is rated higher. 76477 Complex Sound Synth averages 3.9 out of 5 from 9 ratings, while ThermoSynth averages 5.0 from 4 ratings.

### Do 76477 Complex Sound Synth or ThermoSynth have ads?

Neither 76477 Complex Sound Synth nor ThermoSynth shows ads.

### Which is updated more often, 76477 Complex Sound Synth or ThermoSynth?

76477 Complex Sound Synth ships an update every 3 months, and ThermoSynth every 2 months. Most recently, 76477 Complex Sound Synth was updated on October 21, 2026 and ThermoSynth on October 6, 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.*