# Deep Synth : FM Synthesizer — Audio Unit, MIDI input support

> FM synthesizer app with real-time wave editing and MIDI support. (iPhone/iPad app by Aleksandar Mlazev.)

- Source: https://appshunter.io/ios/app/deep-synth-fm-synthesizer/id1203273984 (this page in markdown: same URL + `.md`)
- Developer: [Aleksandar Mlazev](https://appshunter.io/developer/1093798140)
- Category: Music, Education
- Price: $4.99
- Rating: 4.00/5 from 2 App Store ratings · 4 written reviews indexed
- Age rating: 4+
- Requires: iOS 10.0 · 9 MB
- Languages: American English
- Released: 2017-02-08
- Data updated: 2026-06-01
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/deep-synth-fm-synthesizer/id1203273984/reviews.md

## What is Deep Synth?

Unique synth with AUV3 (Audio Unit) and midi keyboard support!
You can touch and change the wave and hear the difference. 

Deep Synth also has:
- simple envelope filter
- reverb effect
-  tremolo sound effect
- hair - high frequency modulation. 
- 5 points wave form modulation
- polyphonic keyboard
- 5 octaves range selector
- point vibe to make your wave dynamic
- build-in resonator effect
- supports MIDI keyboards via USB (full velocity and pitch shift  support)
- works as Audio Unit instrument plug-in AUV3

The sound generator inside the synthesizer is producing the exact wave form as the one you have created.
You can control the position and width of the picks in real time. 

The synth app has fast and capable piano keyboard. It is fully polyphonic and you can play in 5 octaves.

## Key features

- Real-time wave form editing
- Simple envelope filter
- Reverb and tremolo effects
- Polyphonic keyboard with 5 octaves
- MIDI keyboard support
- AUV3 Audio Unit instrument

## Recent user reviews (4 of 4)

All indexed reviews: https://appshunter.io/ios/app/deep-synth-fm-synthesizer/id1203273984/reviews.md

### 4/5 — Lag and bad keys

*2020-12-24*

iPadOS 14.3. Notes have noticeable attack lag and b and c keys on right side do not play. Would be fun if it were usable.
Edit and three more stars. Must have been something iPadOS did, have had screwy problems since 14.3. I hate writing bad reviews and this one turned out to be unjustified. Everything works normally, lacks one star due to slider placement.

### 2/5 — Not worth the money!!

*2019-08-25*

Its not necessarily that this synth is bad (its okay, quite lacking) however there are so many other synths on this Appstore that are just as expensive or even cheaper than this app that have so much more capability. DXI is a great FM synth for example. The price of this app needs to come down significantly or a lot needs to be added to justify the price

### 4/5 — Simple but Unique

*2017-05-05*

This is an interesting synth.  It has a different take on FM and wavetable synthesis than most others on iOS. I do compliment its simplicity with the great tones I am getting.

One star knocked off due to not being any deeper than the name implies, with more modifiable parameters and such. Yet it has a place on my iDevices.

### 3/5 — Not FM synthesis, but fun making waveforms

*2017-02-24*

Unless there is something going on under the hood that actually modulates these waves at some control rate faster than you can move one of the wave-forming dots around with your finger, there is nothing like Frequency Modulation driving this synthesizer. 

What it is: a single waveform synthesizer that lets you customize the wave itself, in finger-dragging time. Useful if you like to noodle with this sort of thing, although the controls are imprecise at first: the dots are more like force fields than line connectors. Most of the waveforms will not simply be drawn from dot to dot. But that is a good thing, because it allows you to draw more interesting waves than would be possible with five sample points. 

Not a bad toy, but not a new FM synthesizer either, so...   *shrug*

**Developer response:** There are lots of things going on. Every peak can "vibrate". The whole wave vibrates with the tremolo and the resonator is a magic by its own :) Basicaly in a typical FM you use the control frequency to modulate the peak's width and shape - which you can do for every peak with the width slider ...

## Frequently asked questions about Deep Synth

### What is Deep Synth?

Deep Synth is a paid FM synthesizer application for iOS devices that allows users to create and manipulate sounds in real-time. It supports AUV3 Audio Unit instrument plug-ins and MIDI keyboard input.

### What devices does Deep Synth support?

Deep Synth is supported on iPhone, iPad, and iPod touch devices. It was last updated on December 6, 2023, with version 3.10.

### How much does Deep Synth cost?

Deep Synth is a paid application and costs $4.99. There are no in-app purchases or advertisements associated with this app.

### Does Deep Synth have ads?

No, Deep Synth does not contain advertisements. It is a paid application with a one-time purchase price.

### What sound effects are included in Deep Synth?

Deep Synth includes a reverb effect, a tremolo sound effect, and a 'hair' effect for high-frequency modulation. It also features a build-in resonator effect.

### Can I use a MIDI keyboard with Deep Synth?

Yes, Deep Synth fully supports MIDI keyboards via USB, including full velocity and pitch shift support. This allows for more expressive control over your synthesized sounds.

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

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

### How often is Deep Synth updated?

The latest version of Deep Synth, 3.10, was released on December 6, 2023. While specific update frequency isn't detailed, this indicates ongoing development and support.

## Version history (last 5 releases)

### 3.10 — 2023-12-06

Updated with new SDK

### 3.00 — 2020-09-14

iPhone 11 UI fixes and swift 5 update

### 2.01 — 2017-05-29

performance optimization

### 2.00 — 2017-05-24

fixes and Audio Unit AUV3 support

### 1.50 — 2017-05-01

fixes

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| --- | --- | --- | --- |
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## More apps by Aleksandar Mlazev

- [Fine Chromatic Tuner](https://appshunter.io/ios/app/fine-chromatic-tuner/id1093798141)
- [Frequency Sound Generator](https://appshunter.io/ios/app/frequency-sound-generator/id1098669497)
- [Fine Bass Tuner](https://appshunter.io/ios/app/fine-bass-tuner/id1099100372)
- [Sonic Synth : FM synthesizer](https://appshunter.io/ios/app/sonic-synth-fm-synthesizer/id1104940736)
- [Drum Beats Metronome](https://appshunter.io/ios/app/drum-beats-metronome/id1115616093)
- [Guitar Tabs X - tabs editor](https://appshunter.io/ios/app/guitar-tabs-x-tabs-editor/id1138809362)

All apps by Aleksandar Mlazev: https://appshunter.io/developer/1093798140

## Related topics

[synthesizer fm](https://appshunter.io/ios/topics/synthesizer-fm)

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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 2026-06-01.*
