# SynthScaper vs Kauldron Synthesizer

The clearest difference is update cadence: SynthScaper at every 2 months against Kauldron Synthesizer's every 49 months. SynthScaper also leads on iOS requirement (10.0 vs 15.6). Kauldron Synthesizer's advantage is price ($9.99 vs $14.99). On rating, review sentiment, ratings volume and ads there is nothing between them.

SynthScaper costs $14.99 and Kauldron Synthesizer $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 4.6 for SynthScaper against 4.6 for Kauldron Synthesizer. Both are backed by a comparable volume of ratings — 71 and 136 respectively. Written reviews are what separate them: 87% of SynthScaper's written reviews are positive against 80% of Kauldron Synthesizer's.

SynthScaper ships an update every 2 months, Kauldron Synthesizer every 49 months. The most recent releases landed on September 7, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | SynthScaper | Kauldron Synthesizer |
| --- | --- | --- |
| Price | $14.99 | **$9.99** |
| Rating | [4.6 (71 ratings)](https://appshunter.io/ios/app/synthscaper/id1175892734/reviews) | [4.6 (136 ratings)](https://appshunter.io/ios/app/kauldron-synthesizer/id1292510609/reviews) |
| Number of ratings | 71 | **136** |
| Positive reviews | **86.8% of reviews** | 79.7% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 49 months |
| Monetization | Paid | Paid |
| Size | 68 MB | 32 MB |
| Requires iOS | **10.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Igor Vasiliev](https://appshunter.io/developer/424401626) | [Yonac Inc.](https://appshunter.io/developer/288670023) |

## What reviewers say

### SynthScaper

[App page](https://appshunter.io/ios/app/synthscaper/id1175892734)

Create unique ambient soundscapes with a powerful synthesizer. Experiment with multi-layered oscillators, filters, and effects to generate everything from melodic instruments to abstract noises. Features a neural network for generating new presets and extensive MIDI/screen keyboard control.

**Highlights:** Multi-layered oscillators, Chains of filters and effects, Envelope generators and LFOs, Designer tool for preset generation, Flexible screen and MIDI keyboard control, Inter-App Audio and Audiobus 3 support

**Features:** macOS Compatibility

**In-app purchases:** none


### Kauldron Synthesizer

[App page](https://appshunter.io/ios/app/kauldron-synthesizer/id1292510609)

This app combines classic analog synth warmth with AI-powered sound design. It offers intelligent preset generation, extensive modulation options, and a powerful arpeggiator for creating rich synth textures.

**Highlights:** AI-powered preset generation (SPAWN²), Analog modeling oscillators, Extensive modulation matrix, Dual XY-pads for control, Powerful arpeggiator, AUv3 plugin support, Over 900 presets

**In-app purchases:** none

**What reviewers like**

- ✨ Warm and rich sound
- 👍 Easy to use interface
- 💡 Great presets included
- 🚀 Powerful sound engine
- 🌟 High quality emulation

**What reviewers complain about**

- 🐛 Buggy AUv3 implementation
- 🔊 Shrill noise issue
- 🔇 No Bluetooth speaker support
- ⚠️ Strange behavior/no reset
- 📉 Lacks oomph/personality

**Reported bugs**

- Oscillators cannot be set to -1 octave
- Shrill noise
- No Bluetooth speaker output
- Fails to reload with Logic projects
- Cannot load into Logic Pro

**Requested features**

- Bring synths/effects to macOS
- Mac App version
- More comprehensive FX section (distortion/saturation)
- MIDI-out for arpeggiator
- Drum machine, PAD launcher, DAW


## Frequently asked questions

### Is SynthScaper free?

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

### Is Kauldron Synthesizer free?

Kauldron Synthesizer costs $9.99, with no in-app purchases.

### Which has better reviews, SynthScaper or Kauldron Synthesizer?

SynthScaper and Kauldron Synthesizer are both rated 4.6 out of 5 on the App Store, from 71 and 136 ratings respectively.

### Do SynthScaper or Kauldron Synthesizer have ads?

Neither SynthScaper nor Kauldron Synthesizer shows ads.

### Which is updated more often, SynthScaper or Kauldron Synthesizer?

SynthScaper ships an update every 2 months, and Kauldron Synthesizer every 49 months. Most recently, SynthScaper was updated on September 7, 2026 and Kauldron Synthesizer on September 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.*