# Kauldron Synthesizer vs Oscidia

The clearest difference is update cadence: Oscidia at every 6 weeks against Kauldron Synthesizer's every 49 months. Oscidia also leads on rating (5.0 vs 4.6) and iOS requirement (13 vs 15.6). Kauldron Synthesizer's advantage is price ($9.99 vs $14.99) and ratings volume (136 vs 12). On review sentiment, ads, in-app purchases and monetization model there is nothing between them.

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

Oscidia holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Kauldron Synthesizer has 136 ratings behind it against 12, so its average is the more settled of the two. Written reviews point the same way: 80% of Kauldron Synthesizer's written reviews are positive against 88% of Oscidia's.

Kauldron Synthesizer ships an update every 49 months, Oscidia every 6 weeks. The most recent releases landed on October 20, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Kauldron Synthesizer | Oscidia |
| --- | --- | --- |
| Price | **$9.99** | $14.99 |
| Rating | [4.6 (136 ratings)](https://appshunter.io/ios/app/kauldron-synthesizer/id1292510609/reviews) | **[5.0 (12 ratings)](https://appshunter.io/ios/app/oscidia/id6748944379/reviews)** |
| Number of ratings | **136** | 12 |
| Positive reviews | 79.7% of reviews | **87.5% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 49 months | **Every 6 weeks** |
| Monetization | Paid | Paid |
| Size | 32 MB | 168 MB |
| Requires iOS | 15.6 | **13** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Yonac Inc.](https://appshunter.io/developer/288670023) | [4Pockets.com](https://appshunter.io/developer/370131860) |

## What reviewers say

### 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


### Oscidia

[App page](https://appshunter.io/ios/app/oscidia/id6748944379)

This powerful synthesizer app allows iOS users to create a vast array of sounds using multiple oscillators, wavetable synthesis, and advanced modulation options. It features a versatile sequencer with independent arpeggiators and built-in effects for complex sound design.

**Highlights:** 3 Oscillators Per Voice, Wavetable & Additive Synthesis, Morphing & Warping Wavetables, 5 Morphable Filter Types, 3 Independent Arpeggiators, Mod Matrix, Internal Effects Suite

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

**In-app purchases:** none


## Frequently asked questions

### Is Kauldron Synthesizer free?

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

### Is Oscidia free?

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

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

Oscidia is rated higher. Kauldron Synthesizer averages 4.6 out of 5 from 136 ratings, while Oscidia averages 5.0 from 12 ratings.

### Do Kauldron Synthesizer or Oscidia have ads?

Neither Kauldron Synthesizer nor Oscidia shows ads.

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

Kauldron Synthesizer ships an update every 49 months, and Oscidia every 6 weeks. Most recently, Kauldron Synthesizer was updated on October 20, 2026 and Oscidia 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.*