# Theremin Touch vs Zeeon synth

The clearest difference is price: Theremin Touch at $2.99 against Zeeon synth's $14.99. Theremin Touch also leads on in-app purchases (none vs 3) and update cadence (every 2 weeks vs every 2 months). Zeeon synth's advantage is rating (4.8 vs 4.0) and ratings volume (209 vs 15). On ads, device support and iOS requirement there is nothing between them.

Theremin Touch costs $2.99 and Zeeon synth $14.99 up front. Zeeon synth sells 3 one-off in-app purchases. Theremin Touch asks for nothing beyond the download.

Zeeon synth holds the better App Store score, 4.8 against 4.0. That said, the two scores are not equally well evidenced: Zeeon synth has 209 ratings behind it against 15, so its average is the more settled of the two. Written reviews point the same way: 65% of Theremin Touch's written reviews are positive against 76% of Zeeon synth's.

Theremin Touch ships an update every 2 weeks, Zeeon synth every 2 months. The most recent releases landed on October 10, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | Theremin Touch | Zeeon synth |
| --- | --- | --- |
| Price | **$2.99** | $14.99 |
| Rating | [4.0 (15 ratings)](https://appshunter.io/ios/app/theremin-touch/id1168287678/reviews) | **[4.8 (209 ratings)](https://appshunter.io/ios/app/zeeon-synth/id1230960440/reviews)** |
| Number of ratings | 15 | **209** |
| Positive reviews | 64.7% of reviews | **76.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 2 months |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 11 MB | 27 MB |
| Requires iOS | **14.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [John McMillan](https://appshunter.io/developer/548931248) | [BeepStreet](https://appshunter.io/developer/321412321) |

## What reviewers say

### Theremin Touch

[App page](https://appshunter.io/ios/app/theremin-touch/id1168287678)

Experience the unique sound of a classic electronic instrument with this vintage-styled simulator. It offers multiple oscillator wave shapes, adjustable frequency ranges, and built-in effects for a realistic playing experience. Optimized for touch and Apple Pencil on compatible devices.

**Highlights:** Vintage theremin emulation, Onboard delay and reverb FX, 4 oscillator wave shapes, Adjustable frequency range, Touchpad for frequency and volume control, Apple Pencil support (iPad only), Built-in tuner

**Features:** macOS Compatibility

**In-app purchases:** none


### 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 Theremin Touch free?

Theremin Touch costs $2.99, with no in-app purchases.

### Is Zeeon synth free?

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

### Which has better reviews, Theremin Touch or Zeeon synth?

Zeeon synth is rated higher. Theremin Touch averages 4.0 out of 5 from 15 ratings, while Zeeon synth averages 4.8 from 209 ratings.

### Do Theremin Touch or Zeeon synth have ads?

Neither Theremin Touch nor Zeeon synth shows ads.

### Which is updated more often, Theremin Touch or Zeeon synth?

Theremin Touch ships an update every 2 weeks, and Zeeon synth every 2 months. Most recently, Theremin Touch was updated on October 10, 2026 and Zeeon synth on October 20, 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.*