Version updates

Flynth is a synthesizer by Fingerlab, designed for musicality and easy use.

New version 2.0.1
Old version 2.0
Release Notes This update add iPhone 12 support and AudioBus support for iOS 14.
Author Fingerlab
Type Instrument
Instrument type Synth
Instrument sounds Keyboards
Supports Inter-App Audio (IAA), Audiobus, Audio Unit (AU)

Play any synth or virtual instrument with your trusted old guitar, or record notation by playing it.

New version 2.7.7
Old version 2.7.6
Release Notes New AudioUnit (AUv3) plugin version! Fixed crash when sending MIDI out in iOS 14.2 Fixed save/load state when used as AudioUnit inside a host. Fixed issue with pitch bend and aftertouch introduced in last update
Author Jam Origin
Type Controller
Supports Audio Unit (AU)

Lagrange synthesizer has two oscillators, a noise generator and two filters that can be selected from various algorithmic models.

New version 1.2.8
Old version 1.2.7
Release Notes - Added arpeggiator timing correction to the settings screen. - Added a method to change the selection by dragging to the selection UI consisting of lamps and button(s). The sound is not affected during selection by dragging. When you touch up, the drag selection will be reflected in the sound. - Other minor improvements and fixes.
Author iceWorks, Inc.
Type Instrument
Instrument type Synth
Instrument sounds Keyboards
Supports Inter-App Audio (IAA), Audiobus, Audio Unit (AU), Ableton Link

Mersenne is a melodic percussion synthesizer that combines two FM synthesis modules, a noise generator and a resonator.

New version 2.5.6
Old version 2.5.5
Release Notes - Added arpeggiator timing correction to the settings screen. - Added a method to change the selection by dragging to the selection UI consisting of lamps and button(s). The sound is not affected during selection by dragging. When you touch up, the drag selection will be reflected in the sound. - Other minor improvements and fixes.
Author iceWorks, Inc.
Type Instrument
Instrument type Synth
Instrument sounds Keyboards
Supports Inter-App Audio (IAA), Audiobus, Audio Unit (AU), Ableton Link

n-Track Studio 8 turns your iPhone, iPad or iPod touch into a complete recording studio.

New version 9.2.5
Old version 9.2.4
Release Notes • fixed an issue in Bass Amp generating noise • using new CoreMIDI API to fix a crash caused by a problem in iOS 14.2 • various bug fixes and enhancements Like n-Track Studio? Please leave a review & help us keep improving the app for you. If you have comments or suggestions please use the Contact Support button in the Settings box. Thanks for using n-Track Studio!
Author n-Track S.r.l.
Supports Inter-App Audio (IAA), Audiobus, Audio Unit (AU)

monoHarp is a badly behaved musical instrument. Sometimes it makes weird noises you don't want it to, but it can also sound pretty amazing too.

New version 4.0
Old version 3.1
Release Notes It's a bit better.
Author Dan Jefferies
Type Instrument
Instrument type Synth
Instrument sounds Keyboards

Pure Acid is a bassline synthesizer and drum machine in one app.

New version 1.4.2
Old version 1.4.1
Release Notes Introducing step conditions in the drum sequencer! Now you can assign step conditions to various drum steps while in Step Edit mode to make your drum patterns more live and diverse! Just tap a step (or hold it) and rotate the data knob to assign desired step condition to selected step. A list of step conditions used: -> CPY (copy previous condition result); -> 1st (play step only once at the first pattern's run, useful for e.g. Crash Cymbal); -> 10-90% (sets probability of this step playback); -> X:Y (e.g. 2:4 means play step during each 2nd repeat of every 4 repeats of the pattern); -> stripe/exclamation marked conditions mean inversion of the condition result. Also in this update: • bug fixed in multi-output AUv3: when sending midi data to Pure Acid's Midi Input, the sound of the non-master busses was distorted; • now you can set AUv3 to open initially with a blank preset instead of an Init pattern by changing in standalone Settings -> General -> "Load AUv3 with" setting; • some factory presets were modified to include new step condition feature; • 5 new factory pattern presets added; • standalone midi output: slide notes overlapping increased a bit; • Audiobus and Ableton Link SDK updated to the latest versions; • minor bug fixes and iOS 14 support.
Author Dmitrij Pavlov
Type Instrument
Instrument type Sampler, Synth
Instrument sounds Drums, Percussion, Bass
Supports Inter-App Audio (IAA), Audiobus, Audio Unit (AU), Ableton Link

This is a very simple yet powerful iOS app that performs as a polyphonic audio synthesizer.

New version 2.15.1
Old version 2.15.0
Release Notes • Removed the "effects" button when running as AUv3 app extension. Currently, the extension does not support effects in the signal processing flow. However, an AUv3 host should allow them to be added to the output of the extension.
Author Brad Howes
Type Instrument
Instrument type Synth
Instrument sounds Keyboards
Supports Audio Unit (AU)

Loop Find is a Groovebox-like sampler tool, that also lets you sequence songs. Tap and slide to record beats, melodies, and sample automation.

New version 2.3
Old version 2.2
Release Notes - [Added] Tap + Hold zoom.
Author James Navarro
Type Instrument
Instrument type Sampler
Supports Audio Unit (AU)

n-Track Studio 8 turns your iPhone, iPad or iPod touch into a complete recording studio.

New version 9.2.5
Old version 9.2.4
Release Notes • fixed an issue in Bass Amp generating noise • using new CoreMIDI API to fix a crash caused by a problem in iOS 14.2 • various bug fixes and enhancements Like n-Track Studio? Please leave a review & help us keep improving the app for you. If you have comments or suggestions please use the Contact Support button in the Settings box. Thanks for using n-Track Studio!
Author n-Track S.r.l.
Type Host
Supports Inter-App Audio (IAA), Audiobus, Audio Unit (AU)

GeoShred Play is an expressive musical instrument with a multi-touch performance surface, coupled with an advanced physical model of a guitar.

New version 5.807.1
Old version 5.804.1
Release Notes Happy Diwali. GeoShred Play is free until Nov 18 for Diwali!
Author Wizdom Music LLC
Type Instrument
Instrument type Synth
Instrument sounds Guitar
Supports Inter-App Audio (IAA), Audiobus

Even if you've only played air guitar, ThumbJam lets you sound like a pro.  Pick an instrument and jam - with all the scales to choose from you'll never hit a wrong note.

New version 2.6.7
Old version 2.6.6
Release Notes This is a bug-fix and compatibility release, nothing too exciting! - fixed long-standing issue where the app could become unusable after a device update or restore - fixed some popup issues on iPad - updated Audiobus SDK
Author Sonosaurus LLC
Type Instrument, Controller
Instrument type Sampler
Instrument sounds All-in-one
Supports Inter-App Audio (IAA), Audiobus, Ableton Link

Yukawa is an AUv3 compatible multi-effects plug-in that combines a tempo-synchronized multi-tap sequence delay that produces rhythmic phrases, a modulatable stereo delay, and a DJ mixer-style filter.

New version 1.1.7
Old version 1.1.6
Release Notes - Added a method to change the selection by dragging to the selection UI consisting of lamps and button(s). The sound is not affected during selection by dragging. When you touch up, the drag selection will be reflected in the sound. - Other minor improvements and fixes.
Author iceWorks, Inc.
Type Effect
Effect type Equalizer, Filter, Reverb, Delay, Echo
Supports Inter-App Audio (IAA), Audiobus, Audio Unit (AU), Ableton Link

AudioKit Synth One is a completely free & open-source professional iOS Synthesizer. 

New version 1.8
Old version 1.7.1
Release Notes THANKS! New PRESETS in this update: + New bank of 42 presets called "Synth Tutorials" by Francis Preve + Full Free Synth One Tutorial iBook coming soon, these presets are a companion to that book + We are all volunteer musicians & coders. Thanks for your help! Please note that we all are volunteers. AudioKit does not have any sponsors or investors. We are all musician/developers who love making apps. Together we can change the world. We love hearing your music! Send it to us. For friendly conversation or to say hello, please email hello@audiokitpro.com The full & complete source code is available: https://github.com/AudioKit/AudioKitSynthOne
Author AudioKit Pro
Type Instrument
Instrument type Synth
Instrument sounds Keyboards
Supports Inter-App Audio (IAA), Audiobus, Audio Unit (AU), Ableton Link

Mixvibes introduces the perfect remix toolbox: lay down samples on a grid of pads and tweak them in seconds.

New version 5.2.6
Old version 5.2.5
Release Notes We keep improving Remixlive to make sure you have the best experience possible when creating and composing! If you like Remixlive, make sure to rate the app and follow us on Instagram @remixliveapp Version 5.2 updates: - Added onboarding flow - Added new project list page - Added video to store Features and FXs - Added free trial monthly subscription - Sample collection now browses projects instead of packs - Templates has been renamed to packs - Updated manage subscription page - Import /export bug fixes - BPM bug fixes - Sample bug fixes - Pad bug fixes - Visual bug fixes - Clock bug fixes - Potential store bug fixes
Author MIXVIBES
Type Instrument
Instrument type Sampler
Instrument sounds Other
Supports Inter-App Audio (IAA), Audiobus

Lorentz is not only a live-oriented analog modeling synthesizer, but also has a resonator that makes metallic and aggressive sounds.

New version 2.5.7
Old version 2.5.6
Release Notes - Added arpeggiator timing correction to the settings screen. - Added a method to change the selection by dragging to the selection UI consisting of lamps and button(s). The sound is not affected during selection by dragging. When you touch up, the drag selection will be reflected in the sound. - Other minor improvements and fixes.
Author iceWorks, Inc.
Type Instrument
Instrument type Synth
Instrument sounds Keyboards
Supports Inter-App Audio (IAA), Audiobus, Audio Unit (AU), Ableton Link

Kronecker is a synthesizer with a mechanism to make sounds many times like a rhythm machine each time you press a keyboard.

New version 1.5.6
Old version 1.5.5
Release Notes - Added arpeggiator timing correction to the settings screen. - Added a method to change the selection by dragging to the selection UI consisting of lamps and button(s). The sound is not affected during selection by dragging. When you touch up, the drag selection will be reflected in the sound. - Other minor improvements and fixes.
Author iceWorks, Inc.
Supports Inter-App Audio (IAA), Audiobus, Audio Unit (AU), Ableton Link

Get started on any device or platform. With its collection of both modern and legendary sounds, Zenbeats brings Roland’s history of innovation into an environment.

New version 2.0.6
Old version 2.0.5
Release Notes 2.0.6 Bug fixes and enhancements Zenbeats 2.0 is here! What's New: ZC1 Synthesizer brings the power and compatibility of ZEN-Core Synthesis System to Zenbeats (64-bit OS required) -Includes over 800 tones and 90 MFX (in-app purchase required) Zenbeats Chorus (in-app purchase required) Additional Enhancements New MIDI and Drum Editor improvements -Simplified MIDI editing with quick functions for adjusting pattern size, time signature and more -Drum and Instrument patterns can now be up to 64+ bars -Dedicated menu for quantize, note value features and more -Quick access to instrument presets, parameters, and channel strip Updated Track Panels -Rec Arm behavior: Manually arming a track will now disable arming via track selection. -Can now record into LoopBuilder cells on multiple tracks simultaneously. -Added Track Freeze icon to Track Control panel for quick access Option added for floating plugin windows on iPadOS Browser Search: Can now search presets, track templates and more. Store Enhancements: New search and filter options for instrument packs
Author Roland Corporation
Type Instrument
Instrument type Sampler
Instrument sounds Drums, Percussion
Supports Audio Unit (AU)

Poison-202 is a professional Vintage Midi Synthesizer.

New version 2.5.2
Old version 2.5.1
Release Notes - fixed AUv3 crash upon load in some audio host apps; - in Scale play mode, root notes on the keyboard are now marked with red color for your comfort; - now you can examine current parameter values just by tapping desired knob or fader; - Audiobus SDK updated to v3.0.12; - minor bug fixes and iOS 14 support.
Author Dmitrij Pavlov
Type Instrument
Instrument type Synth
Instrument sounds Keyboards
Supports Inter-App Audio (IAA), Audiobus, Audio Unit (AU)

This is a very simple yet powerful iOS app that performs as a polyphonic audio synthesizer.

New version 2.15.0
Old version 2.13.4
Release Notes • Added new reverb and delay effects. Available via new "signal" button on the info bar. • Initial support for SF2 file references outside of the app sandbox, including on USB drives. • Additional MIDI processing improvements.
Author Brad Howes
Type Instrument
Instrument type Synth
Instrument sounds Keyboards
Supports Audio Unit (AU)