# iVCS3 vs Zeeon synth

The clearest difference is price: Zeeon synth at $14.99 against iVCS3's $19.99. Zeeon synth also leads on iOS requirement (15.6 vs 17.0). iVCS3's advantage is review sentiment (91% vs 76%). On rating, ratings volume, update cadence and ads there is nothing between them.

iVCS3 costs $19.99 and Zeeon synth $14.99 up front. iVCS3 sells 10 one-off in-app purchases and Zeeon synth sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.9 for iVCS3 against 4.8 for Zeeon synth. Both are backed by a comparable volume of ratings — 206 and 209 respectively. Written reviews are what separate them: 91% of iVCS3's written reviews are positive against 76% of Zeeon synth's.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 18, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | iVCS3 | Zeeon synth |
| --- | --- | --- |
| Price | $19.99 | **$14.99** |
| Rating | **[4.9 (206 ratings)](https://appshunter.io/ios/app/ivcs3/id665703927/reviews)** | [4.8 (209 ratings)](https://appshunter.io/ios/app/zeeon-synth/id1230960440/reviews) |
| Number of ratings | 206 | **209** |
| Positive reviews | **90.7% of reviews** | 76.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 107 MB | 27 MB |
| Requires iOS | 17.0 | **15.6** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [apeSoft](https://appshunter.io/developer/464660782) | [BeepStreet](https://appshunter.io/developer/321412321) |

## What reviewers say

### iVCS3

[App page](https://appshunter.io/ios/app/ivcs3/id665703927)

This application emulates the iconic EMS VCS3 synthesizer, a pioneering portable synthesizer from 1969. It recreates the original's unique sound generation capabilities, including its oscillators, filters, and patch matrix, allowing users to explore its distinctive sonic palette.

**Highlights:** Official EMS VCS3 emulation, Three oscillators (2 VCOs, 1 LFO), Noise generator, Voltage controlled low pass filter (VCF), Patch board matrix, Joy-stick controller, Voltage controlled spring reverb

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Red Sky Lullaby - 180 Presets | Free | one-time |
| Singe Difficile by RUST(i)K | Free | one-time |
| RUMBLE | Free | one-time |
| OLD GRIT - COLLECTION | Free | one-time |
| JEC 2018 Iconic PinkFloyd | Free | one-time |
| JEC EMS-50 | Free | one-time |
| SINAPSYA - Under The Dust | $2.99 | one-time |
| LALA - Sonic Pleasures | $3.99 | one-time |
| JEC Mega Bank | $4.99 | one-time |
| Essential EMS Modifications | $6.99 | one-time |

**What reviewers like**

- 🚀 Faithful recreation of the original
- 👍 Powerful and versatile sound
- 🎨 Gorgeous vintage interface
- 💡 Additional features beyond the original
- 🎛️ Excellent integration with MIDI and other apps

**What reviewers complain about**

- 🐛 Occasional crashes and bugs
- 🤔 Steep learning curve
- 🔍 Difficult to navigate the matrix

**Reported bugs**

- Presets not loading
- Crashes on iOS 15.04
- Sampler not functioning properly

**Requested features**

- Mac compatibility
- Improved preset management
- Expanded sampling capabilities


### Zeeon synth

[App page](https://appshunter.io/ios/app/zeeon-synth/id1230960440)

This app is a virtual analog synthesizer that recreates the sound and feel of classic hardware. It features a detailed circuit-modeling engine, powerful modulation, and multiple filter models for rich, organic soundscapes. Explore a vast array of presets and expand your sonic palette with additional sound banks.

**Highlights:** Circuit-modeling engine, Powerful modulation matrix, Dual oscillators with variable waveforms, Multiple filter models, Built-in effects unit, Audio Unit v3 support, Polyphonic step sequencer

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| OI - Exploration Vol. 1 | $3.99 | one-time |
| BB Z-Space | $4.99 | one-time |
| BB Synthwave | $4.99 | one-time |

**What reviewers like**

- 🎨 Excellent sound quality
- 🎹 Intuitive and well-designed interface
- 🔧 Flexible and deep sound design capabilities
- 💻 Seamless integration as an AUv3 plugin
- 🎚️ Smooth and responsive controls

**What reviewers complain about**

- 🐛 Stability issues, crashes on some devices
- 🔌 Compatibility problems with newer iOS versions
- 📂 Preset management could be improved
- 🔀 Lack of MIDI learn and sequencer features
- 🖥️ UI scaling issues on larger iPad displays

**Reported bugs**

- Preset settings not retained after app restart
- Synth reverts to default settings when reopening Logic Pro project
- Crashes and freezes on certain iOS 14+ devices
- Inability to access in-app purchases from within the app

**Requested features**

- Add MIDI learn functionality
- Implement a more robust preset management system
- Include a built-in sequencer with save/load capabilities
- Improve UI scaling and layout for larger iPad screens
- Provide better integration with inter-app audio and Audiobus


## Frequently asked questions

### Is iVCS3 free?

iVCS3 costs $19.99, and also offers in-app purchases.

### Is Zeeon synth free?

Zeeon synth costs $14.99, and also offers in-app purchases.

### Which has better reviews, iVCS3 or Zeeon synth?

iVCS3 is rated higher. iVCS3 averages 4.9 out of 5 from 206 ratings, while Zeeon synth averages 4.8 from 209 ratings.

### Do iVCS3 or Zeeon synth have ads?

Neither iVCS3 nor Zeeon synth shows ads.

### Which is updated more often, iVCS3 or Zeeon synth?

iVCS3 ships an update every 2 months, and Zeeon synth every 2 months. Most recently, iVCS3 was updated on October 18, 2026 and Zeeon synth on October 16, 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.*