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Moebius Lab is a multimorphic sound processor which contains a synth, a varispeed stereo sample player, effects and LFOs that can modulate each parameter.

New version 2.1
Old version 2.0.4
Release Notes Workaround for iOS 12.4 Inter-App Audio connection
Author Amazing Noises
Type Instrument, Effect
Instrument type Synth
Instrument sounds Keyboards
Effect type Equalizer, Filter, Reverb, Delay, Echo, Compressor, Limiter, Gate, Distortion, Drive etc., Chorus, Flanger, Phaser etc., Modulation effects, Pitch effects
Supports Inter-App Audio (IAA), Audiobus

mood is a personal interpretation of the legendary Analog Synthesizer by Eugenio Giordani

New version 1.4.5
Old version 1.4.4
Release Notes Workaround for iOS 12.4 Inter-App Audio connection
Author apeSoft
Type Instrument
Instrument type Synth
Instrument sounds Keyboards
Supports Inter-App Audio (IAA), Audiobus, Audio Unit (AU), Ableton Link

The Amazing Noises Reverb is a Feedback Delay Network (FDN) Reverb Effect, which can create nice reverberated ambiences, from small rooms to huge buildings.

New version 2.4.5
Old version 2.4.4
Release Notes Workaround for iOS 12.4 Inter-App Audio connection
Author Amazing Noises
Type Effect
Effect type Reverb, Delay, Echo
Supports Inter-App Audio (IAA), Audiobus

Dedalus Delay is a real time audio mangler. A network of delay lines is continually granulated and modulated, producing a labyrinth of echoes, which are further processed by filters, dynamic processors and saturation modules.

New version 2.2.5
Old version 2.2.4
Release Notes Workaround for iOS 12.4 Inter-App Audio connection
Author Amazing Noises
Type Effect
Effect type Reverb, Delay, Echo
Supports Inter-App Audio (IAA), Audiobus

SynthMaster One iOS is the mobile version of KV331 Audio's SynthMaster One software synthesizer.

New price $6.99
Old price $19.99
Author KV331 Audio
Type Instrument
Instrument type Synth
Instrument sounds Keyboards
Supports Inter-App Audio (IAA), Audiobus, Audio Unit (AU), Ableton Link

Multilevel Interactive Sound Synthesizer. Up to 240 Frequency Modulation Oscillators or simple Wavetable Additive.

New version 2.6.1
Old version 2.6
Release Notes Workaround for iOS 12.4 Inter-App Audio connection
Author apeSoft
Type Instrument
Instrument type Synth
Instrument sounds Keyboards
Supports Inter-App Audio (IAA), Audiobus

Brought to you in partnership with Streetly Electronics, the inventors of the mellotron, Streetlytron includes a massive collection of 90 tapes, with 65 drawn from Streetly's Production Masters - exactly the same tapes that ship with their $8,000 M4000 unit. Completing the sample sets are our own very popular 'Caitlin Downie Soprano' and 'Clare Lindley Violin' collection, to offer a huge, rich selection of choral and string textures for your mixes.

New price $12.99
Old price $24.99
Author Phil Atkin
Type Instrument
Instrument type Synth
Instrument sounds Keyboards
Supports Inter-App Audio (IAA), Audiobus

apeMatrix is a unique AU/IAA routing tool that gives you total control over what you want to do and how you want to do it.

New version 1.5.6
Old version 1.5.5
Release Notes + Transport Bar Responds to MIDI CC + Workaround for iOS 12.4 Inter-App Audio connection
Author apeSoft
Type Tool
Supports Inter-App Audio (IAA), Audiobus, Audio Unit (AU), Ableton Link

A brickwall peak limiting app, for the complete control of your audio volume.

New version 3.0.3
Old version 3.0.2
Release Notes Workaround for iOS 12.4 Inter-App Audio connection
Author Amazing Noises
Type Effect
Effect type Compressor, Limiter, Gate
Supports Inter-App Audio (IAA), Audiobus, Audio Unit (AU)

GliderVerb is a “Reverberator with Glissandos” simulating a room gradually changing its shape.

New version 2.3.4
Old version 2.3.3
Release Notes Workaround for iOS 12.4 Inter-App Audio connection
Author Amazing Noises
Type Effect
Effect type Reverb, Delay, Echo
Supports Inter-App Audio (IAA), Audiobus

The JAF Collection is an exciting set of digital modeled classic analog synthesizer filters (VCFs) for iOS.

Author Jens Guell
Type Effect
Effect type Equalizer, Filter
Supports Inter-App Audio (IAA), Audio Unit (AU)

With a library of editable patterns, loops, and fills, Drum Session is a very fast, simple way to put together a complete drum track.

New price $9.99
Old price $19.99
Author Ngo Minh Ngoc
Type Instrument
Instrument type Sampler
Instrument sounds Drums, Percussion
Supports Inter-App Audio (IAA), Audiobus, Ableton Link

djay transforms your iOS device into a full-featured DJ and music production system.

New version 3.1.9
Old version 3.1.8
Release Notes Thank you for using djay! We update the app regularly to provide the best mixing experience for you. Here is what’s new in this release: Version 3.1.9: • Fixed launch screen logo offset on some devices • Improved CPU usage when using different hardware sample rates • Various bug fixes and performance improvements Version 3.1.8: • New: Added “All Songs” tab to media library for local files • New: Added 3rd FX to “Manual FX” view • New: History tab in library now allows you to browse through all previous sessions • New: Added user manual (accessible in settings panel) • Improved media library layout and interface for better readability • Improved VoiceOver accessibility for various elements • Improved performance with quick crossfader or slider movements when using MIDI controllers • Fixed cue point markers in overview waveform being offset on some devices • Fixed key lock button being difficult to activate in some view configurations • Various bug fixes and performance improvements NOTE: If you previously purchased djay 2 or djay Pro, you can continue to use them side-by-side with the new djay and re-download them at any time via the "Purchased" section in the App Store app. Additionally, all of your existing controller mappings, cue points, and purchased FX packs will automatically transfer to the Free and Pro versions of the new djay. If you enjoy using djay, would you mind taking a moment to write a review on the App Store? Your feedback is greatly appreciated.
Author Algoriddim GmbH
Type Instrument
Instrument type Sampler
Instrument sounds DJ
Supports Ableton Link

JAX Stereo Tool is a visual Audio Unit plugin for manipulating the stereo image of digital audio.

Author Jens Guell
Type Effect
Effect type Stereo, Pan effects
Supports Inter-App Audio (IAA), Audio Unit (AU)

Create and save complete multi-track music projects. Record, sequence, edit, mix and render complete songs.

New version 3.2.42
Old version 3.2.41
Release Notes * Reduced installer size
Author Image Line Software
Type Host
Supports Audiobus

Quincy is a unique music composition tool. Its modular approach to interpretation of cellular automata renders Life worlds in styles ranging from Balinese Gamelan music to that of Stockhausen.

New version 1.5.8
Old version 1.5.6
Release Notes • This version improves iOS 12 support and fixes some minor layout issues.
Author RoGame Software
Type Host
Supports Inter-App Audio (IAA), Audiobus

OB-Xd is based on the Oberheim OB-X. It attempts to recreate its sound and behavior, but as the original was very limited in some important ways, a number of things were added or altered to the original design.

New version 1.0.5
Old version 1.0.4
Release Notes Fixed Oscillator 2 Frequency and Pulse Width knob positions.
Author DiscoDSP LLC
Type Instrument
Instrument type Synth
Instrument sounds Keyboards

Build your own guitar or bass rig with up to 6 stompbox FX, an amplifier and speaker cabinet w/Mic.

New price $9.99
Old price $19.99
Author IK Multimedia US, LLC
Type Instrument, Effect
Instrument type Sampler
Instrument sounds Drums, Percussion
Effect type Guitar effects, Bass effects, All-in-one
Supports Inter-App Audio (IAA), Audiobus

Loopy offers a sleek, expressive, instantly understandable interface that beginners can start using effectively straight away.

New version 2.7.17
Old version 2.7.16
Release Notes - Added support for Files: you can now access all your Loopy sessions and recordings within the Files app, and manage Loopy's media. - Added Toggle record then mute action (Start recording a blank track, then mute. Toggle mute on a recorded track.) - Tweaked time stretching algorithm for better-sounding stable sounds. - Fixed an issue where time stretching while loading a different project could cause inconsistencies. - Added a partial workaround for a new iOS 12.4 bug that impacts Inter-App Audio and Audiobus. When using Loopy within an Inter-App Audio host, please switch to Loopy after loading in order to enable the audio system. - Assorted MIDI clock receive improvements.
Author A Tasty Pixel
Type Host
Supports Audiobus, Ableton Link

Loopy offers a sleek, expressive, instantly understandable interface that beginners can start using effectively straight away.

New version 1.6.17
Old version 1.6.16
Release Notes - Added support for Files: you can now access all your Loopy sessions and recordings within the Files app, and manage Loopy's media. - Added Toggle record then mute action (Start recording a blank track, then mute. Toggle mute on a recorded track.) - Tweaked time stretching algorithm for better-sounding stable sounds. - Fixed an issue where time stretching while loading a different project could cause inconsistencies. - Added a partial workaround for a new iOS 12.4 bug that impacts Inter-App Audio and Audiobus. When using Loopy within an Inter-App Audio host, please switch to Loopy after loading in order to enable the audio system. - Assorted MIDI clock receive improvements.
Author A Tasty Pixel
Type Host
Supports Audiobus, Ableton Link