# Sunrizer synth vs Kauldron Synthesizer

The clearest difference is update cadence: Sunrizer synth at every 6 months against Kauldron Synthesizer's every 49 months. Sunrizer synth also leads on review sentiment (88% vs 80%) and iOS requirement (10.3 vs 15.6). Kauldron Synthesizer's advantage is price ($9.99 vs $12.99). On rating, ratings volume, ads and in-app purchases there is nothing between them.

Sunrizer synth costs $12.99 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 — 4.7 for Sunrizer synth against 4.6 for Kauldron Synthesizer. Both are backed by a comparable volume of ratings — 183 and 136 respectively. Written reviews are what separate them: 88% of Sunrizer synth's written reviews are positive against 80% of Kauldron Synthesizer's.

Sunrizer synth ships an update every 6 months, Kauldron Synthesizer every 49 months. The most recent releases landed on September 23, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | Sunrizer synth | Kauldron Synthesizer |
| --- | --- | --- |
| Price | $12.99 | **$9.99** |
| Rating | **[4.7 (183 ratings)](https://appshunter.io/ios/app/sunrizer-synth/id443663267/reviews)** | [4.6 (136 ratings)](https://appshunter.io/ios/app/kauldron-synthesizer/id1292510609/reviews) |
| Number of ratings | **183** | 136 |
| Positive reviews | **87.8% of reviews** | 79.7% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 months** | Every 49 months |
| Monetization | Paid | Paid |
| Size | 28 MB | 32 MB |
| Requires iOS | **10.3** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [BeepStreet](https://appshunter.io/developer/321412321) | [Yonac Inc.](https://appshunter.io/developer/288670023) |

## What reviewers say

### Sunrizer synth

[App page](https://appshunter.io/ios/app/sunrizer-synth/id443663267)

This virtual analog synthesizer offers a rich, warm sound with advanced features like SuperSaw emulation and morphing parameter control. It integrates seamlessly with MIDI hardware and sequencers, providing a professional-grade sound design experience on iOS.

**Highlights:** SuperSaw sound emulation, Dual filters with configurable routing, Morph Group for parameter control, CoreMidi and background audio support, Multi-mode oscillator multiplication, Microtuning support

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

**In-app purchases:** none

**What reviewers like**

- 🎨 Exceptional sound quality
- 👍 Intuitive and easy-to-use interface
- 🎹 Powerful and flexible synth engine
- 💡 Excellent preset library
- 🎚️ Comprehensive modulation and effects

**What reviewers complain about**

- 🐛 Occasional crashes and glitches
- 🔌 Compatibility issues with certain DAWs
- 🔇 Limited audio export options
- 🧭 Confusing preset management

**Reported bugs**

- Synth freezes when loading certain presets
- Inconsistent behavior when using multiple instances
- Graphical issues on newer iPad models

**Requested features**

- Improved MIDI integration and control
- Expanded arpeggiator and sequencing capabilities
- More advanced sound design tools
- Ability to save custom tunings


### 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 Sunrizer synth free?

Sunrizer synth costs $12.99, with no in-app purchases.

### Is Kauldron Synthesizer free?

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

### Which has better reviews, Sunrizer synth or Kauldron Synthesizer?

Sunrizer synth is rated higher. Sunrizer synth averages 4.7 out of 5 from 183 ratings, while Kauldron Synthesizer averages 4.6 from 136 ratings.

### Do Sunrizer synth or Kauldron Synthesizer have ads?

Neither Sunrizer synth nor Kauldron Synthesizer shows ads.

### Which is updated more often, Sunrizer synth or Kauldron Synthesizer?

Sunrizer synth ships an update every 6 months, and Kauldron Synthesizer every 49 months. Most recently, Sunrizer synth was updated on September 23, 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.*