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AudioKit Synth One Synthesizer

AudioKit Synth One Synthesizer

Feature-packed Pro Synthesizer

27K ratings
538 reviews
📚 Education
🎵 Music
Free

Details

  • Released
  • Updated
  • July 7, 2018
  • January 22, 2026

Features

Developer

AudioKit Pro
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iphone
ipad
📌Ready
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❓5 answered
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📦w/o updates
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About

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.

✓Over 300+ Presets
✓MIDI Support
✓Vintage-Style Sequencer
✓Analog Filters
✓Expressive Arpeggiators
✓Open-Source
Show original description

What users say

Summarized from real user reviews of AudioKit Synth One Synthesizer. Based on 27K reviews and a 4.9/5 average, it highlights the 20 positives and 7 negatives reviewers mention most about this Music app.

Positive things

  • 😎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

Negative things

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

What's New in AudioKit Synth One Synthesizer

1.9.2

January 22, 2026

Thanks Everyone! NEW SOUNDS: ++ NEW: Wabi Sabi Waves preset Bank Sound Designer Taeo has generously donated 170 presets You can support his work at https://wabisabiwaves.gumroad.com/ ++ Fixes Bluetooth MIDI Popup

More

User reviews

Most RecentHighest RatedLowest Rated

You will not regret getting this app

This is more than app man it’s a resource for anyone reguardless of how skilled or knowledgeable you are in making music. I just can’t recommend it enough check it out and see what you can make
IceKbalIceKbal

Excelente

Ampla biblioteca de sons bem elaborados, sem propaganda, funciona bem
AnônimolondAnônimolond

The best app ive ever seen

Its the most practical and fun app ive ever seen for composing
anacharsis47anacharsis47

黒鍵が鳴らない

スケールを12ETにしてアプリの鍵盤を弾くと黒鍵が半音下の白鍵と
同じ音になってしまいます。

しかもCの♯がレの白鍵になってしまいます。
以降繰り返し

修正お願いします。
mm kido2015mm kido2015

Perfect for metal music

The presets on this app are sick. I like it. It has perfect. Sounds if you want to. Make some metal sounds for metal music. I would rate this a 10.
Metalcore_Riffer2012Metalcore_Riffer2012
See 533 more reviews

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User experience

🐞

Reported Bugs

5 issues

Login screen freezes

Bug

Incompatible with older devices

Bug

Keyboard issues on iPhone

Bug

Crashes with Audiobus 3

Bug

Mod wheel issues

Bug
✨

Requested Features

12 requests

Add AU support

Feature

Add just intonation feature

Feature

Add dotted-8th-note delay option

Feature

Add more sound packs

Feature

Add drum machine/sequencing capabilities

Feature

Add more complex waveforms

Feature

Add multi-filter support

Feature

Add more than 2 oscillators

Feature

Add ability to record MIDI tracks

Feature

Add support for Bluetooth MIDI controllers

Feature

Add dark mode option

Feature

Add advanced analytics dashboard

Feature

FAQ

What is AudioKit Synth One?

AudioKit Synth One is a free, open-source professional synthesizer app for iOS devices. It provides a wide range of features for creating and manipulating sounds, including over 300 presets, various oscillators, filters, and a built-in sequencer.

What are the key features of this synthesizer app?

Key features include a hybrid analog/FM poly synthesizer engine, over 300 presets crafted by professional sound designers, MIDI input for external controllers, a vintage-style 16-step sequencer, classic poly arpeggiators, and multiple filter types.

Is AudioKit Synth One free to use?

Yes, AudioKit Synth One is completely free, fully functional, and ad-free. It is also open-source, meaning there are no in-app purchases or hidden costs to unlock features. It is designed to always remain free.

What devices is AudioKit Synth One compatible with?

The app is optimized for newer iPads and iPhones for best performance. It requires an iPhone 6 or higher screen size and will not work on older devices like the iPhone 5/SE or Touch devices.

Who would benefit from using this app?

This app is ideal for musicians, producers, and anyone interested in music production or sound design. It allows users to create their own synthesizer sounds, learn the basics of music production, and use it with MIDI keyboards and controllers.