# Esoteric Synth

> Unusual synthetic sound event generator with five oscillators and advanced modulation. (iPhone/iPad app by ANTHONY DI FURIA.)

- Source: https://appshunter.io/ios/app/esoteric-synth/id1454932009 (this page in markdown: same URL + `.md`)
- Developer: [ANTHONY DI FURIA](https://appshunter.io/developer/1436174473)
- Category: Music, Music, Education
- Price: $4.99
- Rating: 4.78/5 from 18 App Store ratings · 5 written reviews indexed
- Age rating: 4+
- Requires: iOS 10.0 · 26 MB
- Languages: English
- Released: 2019-03-16
- Data updated: 2026-06-11
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/esoteric-synth/id1454932009/reviews.md

## What is Esoteric Synth?

Esoteric Synth is a unusual generator of synthetic sound events.
The synthesis is based on 5 oscillators which are intersected through an multiple amplitude modulation and multiple frequency modulation making  an high sound variability
The sound events can be controlled in two ways:
EventMode (High Duration and Low Density)
GrainMode (Low Duration and High Density)
This App is suitable to generate complex sound textures, glitches,noises, sound clouds, sound drones, point sounds and more.

Features:
- AUv3 Audio Units Generator
- Audiobus 3 Generator
- Inter-App Audio Generator
- 5 oscillators
- Multiple Amplitude Modulation
- Multiple Frequency Modulation
- Amplitude Modulation Inverse
- Frequency Modulation Inverse
- Duration and Density control
- Amplitude and Frequency General Control
- Frequency Rescaling
- Geometric and Harmonic Control
- Geometric and Harmonic Control in Frequency Modulation
- Randomic control on Amplitude and Frequency

## Key features

- 5 oscillators
- Multiple Amplitude Modulation
- Multiple Frequency Modulation
- Duration and Density control
- AUv3 Audio Units Generator
- Audiobus 3 Generator
- Inter-App Audio Generator

## Recent user reviews (5 of 5)

All indexed reviews: https://appshunter.io/ios/app/esoteric-synth/id1454932009/reviews.md

### 5/5 — A sound designer’s dream

*2024-06-01, version 1.3*

Great app for what it does and the price point is so reasonable. It’s not a synth, per-se. It’s only suited for making sci-fi background noises. But it does that extremely well. It would take hours of setting up a synth with delay loops and feedback, then slow modulation on a controller wheel, to do what this does out of the box. The presets are good so there’s literally no setup or learning curve. What you get is long modulated sounds that continually morph, with a decent amount of control on the XY pad. I like it!

### 2/5 — AUV3 and preset issues

*2019-11-23*

Using Esoteric as a AUV3 source removes the User Preset option that is there in the stand alone version. No INIT visible to choose.
Trying to constrain the output to a key is not easy and setting each oscillator to a centre frequency is not precise, generally ending up close but not exactly the desired frequency, it’s also tedious. Sliders in different menu’s work in different ways. 

The app does make some interesting noises but it’s pretty much doing its’ own thing.

It’s a shame really as the app has great potential as a drone source. I’d give Esoteric more stars but without MIDI in, constraining to a key difficulty and the user preset issue as AUV3; it makes the app look half finished.

### 5/5 — Drone intricate mayhem horror meditation

*2019-05-16, version 1.2.2*

Love, death and all spectrums in this insanely detailed drone monster. I am pretty sure you can either summon demons or praise angels with this thing, haha but really it’s crazy.

### 4/5 — Not designed for the faint of heart.

*2019-03-17, version 1.2*

I like to consider myself a somewhat experienced synthesist but getting the sounds I’m after using EsotericSynth have been challenging. Don’t get me wrong. I’ve gotten some pretty interesting sounds out of EsotericSynth. Just not what I intended. This app, it maybe best for a novice to synthesis to pass on. 

The manual needs to be fleshed out because there are so many ‘how does this affect EsotericSynth’ features versus conventional synths. Like the Amplitude and Frequency Mixers. Some controls need graduations added.
AM/AM Inv, FM/FM Inv, all the Envelopes, And all Random knobs, for example. Under Oscillator/Frequency Oscillator control’s description is not in English.

It’s very difficult to make exact settings with EsotericSynth.

Saving feature needs SERIOUS work. NEVER overwrite a preset w/o asking first. Never! I lost a preset that I’ll never figure out again because my knuckle accidentally touched a preset name before my index finger touched Save. I was not happy about that. The current preset name should always default into the Preset Name text entry field. Don’t make us retype it when you save incremental changes to a default preset.

I’m still getting my head around the signal flow versus the layout for EsotericSynth. It would be nice to have a quick, single de-tune control feature for the 5 oscillators with a spread feature, in addition to the manually de-tuning each of the 5 synths, which gives precise control.

I like what I see and hear and I am excited about the ambient music, soundscapes and drones to be had with EsotericSynth. Good job thinking outside the box!

### 3/5 — Good APP Major Bugs that Should Have Caught In Beta

*2019-03-17, version 1.2*

I hope the dev see this and takes action. Once they do I will gladly upgrade my review to 5 stars.

First I am disappointed that there is no init patch. Just having the app start at init is not enough. I shouldn’t have to reload the app just to return to init if I want.

Second the app will not allow me to scroll down on the presets menu. I can see that there are other presets, but it always bounces back and won’t let me select them.

## Frequently asked questions about Esoteric Synth

### What kind of sounds can Esoteric Synth create?

Esoteric Synth is designed to generate complex sound textures, glitches, noises, sound clouds, sound drones, and point sounds. Its unique synthesis engine allows for a high degree of sound variability.

### How is Esoteric Synth priced?

Esoteric Synth is a paid application, available for a one-time purchase of $4.99. There are no in-app purchases or subscriptions required.

### What devices does Esoteric Synth support?

Esoteric Synth is compatible with iPhone, iPad, and iPod devices. It is designed to run on iOS.

### How often is Esoteric Synth updated?

The latest version of Esoteric Synth is 1.3, released on June 22, 2020. While the last update was in 2020, the app has a high user rating, suggesting stability.

### What is the age rating for Esoteric Synth?

Esoteric Synth has an age rating of 4+, making it suitable for a wide range of users interested in music creation.

### Does Esoteric Synth have ads?

No, Esoteric Synth does not contain advertisements. As a paid application, it offers an uninterrupted user experience.

### What are the two main sound control modes in Esoteric Synth?

Esoteric Synth offers EventMode, characterized by high duration and low density, and GrainMode, which features low duration and high density. These modes allow for distinct sound generation styles.

### What makes Esoteric Synth's sound generation unique?

The app utilizes five oscillators that are intersected through multiple amplitude and frequency modulations. This complex system allows for high sound variability and the creation of unusual synthetic sound events.

## Version history (last 4 releases)

### 1.3 — 2020-06-22

- New Presets
- New Presets View in Audio Unit
- Fixed Issue Frequency Modulation

### 1.2.2 — 2019-03-22

- fixed issue replace file in preset Standalone Version
- fixed issue scrolling preset system in Audio Unit version

### 1.2 — 2019-03-14

AUv3: Instrument
AUv3: Cubasis, NanoStudio

### 1.1 — 2019-03-13

No release notes.

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## More apps by ANTHONY DI FURIA

- [MonoGranulator](https://appshunter.io/ios/app/monogranulator/id1436174474)
- [Delayrium](https://appshunter.io/ios/app/delayrium/id1461506890)
- [RealDelayrium](https://appshunter.io/ios/app/realdelayrium/id1485819506)
- [Dystopia](https://appshunter.io/ios/app/dystopia/id1524937873)
- [MoDelayrium](https://appshunter.io/ios/app/modelayrium/id1559101828)

All apps by ANTHONY DI FURIA: https://appshunter.io/developer/1436174473

## Related topics

[esoteric synth](https://appshunter.io/ios/topics/esoteric-synth)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-11.*