Best Harmonic Synthesizer App

0+ iOS apps curated and reviewed

4.4 avg rating
7 free apps
Updated June 2026

If you already know Model 15 Modular Synthesizer, this is the deeper bench. 0+ harmonic synthesizer app for iPhone, all reviewed and ranked by user rating, recency, and download trend as of June 2026.

Compare top Harmonic Synthesizer App (June 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Model 15 Modular SynthesizerModel 15 Modular Synthesizer$29.994.9★ (896)NoYesSep 2026
2Minimoog Model D SynthesizerMinimoog Model D Synthesizer$29.994.8★ (3K)NoYesSep 2026
3AudioKit Synth One SynthesizerAudioKit Synth One SynthesizerFree4.9★ (27K)NoNoSep 2026
4Animoog Z SynthesizerAnimoog Z SynthesizerFree4.8★ (1.2K)NoYesSep 2026
5KORG Gadget 3KORG Gadget 3$39.994.8★ (2.9K)NoYesSep 2026
6SynthesizerSynthesizer$3.99 was $11.992.8★ (50)NoNoJul 2026
7Voice Synth ModularVoice Synth ModularFree4.2★ (3K)NoYesSep 2026
8DXi FM synthesizerDXi FM synthesizer$1.994.3★ (19)NoNoSep 2026

Top Picks for Harmonic Synthesizer App

Model 15 Modular Synthesizer#1

Model 15 Modular Synthesizer by Moog Music Inc.

Moog Modular Synthesizer
Editor's Choice
🎵 Music
4.9😊(896 ratings)
$29.99In-App Purchases
Model 15 Modular Synthesizer screenshot 1
Model 15 Modular Synthesizer screenshot 2
Model 15 Modular Synthesizer screenshot 3
Model 15 Modular Synthesizer screenshot 4
Model 15 Modular Synthesizer screenshot 5

This app recreates a legendary modular synthesizer for mobile devices. Explore its iconic modules, experiment with sound design, and create music with intuitive controls and advanced features.

What We Love

  • 🚀 Incredible sound quality
  • 👍 Authentic Moog emulation
  • 💡 Great for learning modular synthesis
  • 🎨 Beautiful and detailed interface
  • 🎹 Expressive MIDI capabilities
  • 🔌 Seamless DAW integration

Room to Improve

  • 🐛 Occasional crashes and glitches
  • 🔍 Difficult to navigate on smaller screens
  • 🕹️ Challenging to patch and tweak
  • 🔋 High CPU usage
Minimoog Model D Synthesizer#2

Minimoog Model D Synthesizer by Moog Music Inc.

Classic Analog Synthesizer
Strong Contender
🎵 Music
4.8😊(3K ratings)
$29.99In-App Purchases
Minimoog Model D Synthesizer screenshot 1
Minimoog Model D Synthesizer screenshot 2
Minimoog Model D Synthesizer screenshot 3
Minimoog Model D Synthesizer screenshot 4
Minimoog Model D Synthesizer screenshot 5
Minimoog Model D Synthesizer screenshot 6

This app is a digital recreation of a legendary analog synthesizer, offering classic sound design with modern features like polyphony, an arpeggiator, and a looping recorder. Explore vast sonic possibilities with included presets or craft your own unique sounds.

What We Love

  • 🎶 Authentic Moog sound
  • 💻 Works well as a plugin
  • 🔊 Impressive sound quality
  • 🎹 Great for music production
  • 🎨 Versatile sound design
  • 🎁 Great value for the price

Room to Improve

  • 🐛 Compatibility issues with newer iOS versions
  • 🔍 Small UI elements on smaller screens
  • 🔇 Occasional audio glitches and crashes
  • 🤔 Preset management could be improved
  • 🕹️ Difficult to use with certain MIDI controllers
AudioKit Synth One Synthesizer#3

AudioKit Synth One Synthesizer by AudioKit Pro

Feature-packed Pro Synthesizer
Worth Considering
🎵 Music
4.9😊(27K ratings)
Free
AudioKit Synth One Synthesizer screenshot 1
AudioKit Synth One Synthesizer screenshot 2
AudioKit Synth One Synthesizer screenshot 3
AudioKit Synth One Synthesizer screenshot 4
AudioKit Synth One Synthesizer screenshot 5

This is a free, open-source professional synthesizer app for iOS devices. It offers over 300 presets, MIDI support, a sequencer, and vintage-inspired filters. Learn music production basics and create your own sounds.

What We Love

  • 😎 Easy to use
  • 🔥 Clean patches
  • 👍 Awesome synth
  • 🎸 Works great with GarageBand
  • 🤩 Absolutely stunning
  • 💥 Incredible dynamic articulation
  • 🎹 Powerful and intuitive
  • 🎶 Vast set of features
  • 🔊 Amazing quality
  • 🤘 Spanking awesome
  • 🤘 Love the concept
  • 🎹 Immediate access to controls
  • 🎨 Versatile sound creation
  • 🎚️ Smooth and responsive
  • ⭐ Packed with presets
  • 🎧 Excellent sound quality
  • 🎛️ Great interface and patches
  • 🎛️ Powerful soft synth
  • 🎛️ Stunning sounds
  • 🎛️ Awesome all-around

Room to Improve

  • 🤔 No AU support yet
  • 🤔 Crashes with Audiobus 3
  • 🤔 Poor palette of sounds
  • 🤔 Mod wheel issues
  • 🤔 Occasional crashes
  • 🤔 High battery consumption
  • 🤔 Keyboard issues on iPhone

More Harmonic Synthesizer App apps to explore

FAQ about Harmonic Synthesizer App

What is the best harmonic synthesizer app for iPhone?
Model 15 Modular Synthesizer tops our harmonic synthesizer app ranking as of June 2026, with a 4.9-star average from 896 App Store ratings, and it's priced at $29.99.
Yes — 7 of the top harmonic synthesizer app we rank are free to download, including AudioKit Synth One Synthesizer and Animoog Z Synthesizer.
Model 15 Modular Synthesizer has no ads and offers in-app purchases, according to its App Store listing as of June 2026.
The Moog Model 15 App is a digital recreation of the classic Moog Model 15 modular synthesizer, designed exclusively for iPad, iPhone, and iPod touch. It meticulously preserves the sound quality and functionality of the original hardware modules, offering a powerful tool for music creation and synthesis education.
The app features faithful recreations of iconic Moog modules like the 921-series oscillators and 904A Low Pass Filter. It offers monophonic and 4-voice polyphonic operation, integrated controllers such as a Moog keyboard and ribbon controller, an expressive sequencing arpeggiator, and extensive MIDI integration. It also includes a looping recorder and support for AUv3 Audio Unit Extensions.