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Helium is a lightweight AUv3 MIDI sequencer plugin designed specifically for AUM. It supports up to 16 tracks of unlimited length with the ability to direct output to 16 channels on up to 16 MIDI output ports.

New price $7.99
Old price $9.99
Author 4Pockets.com
Type Host
Supports Audio Unit (AU)

Great for acoustic guitars or electric guitars with a piezo, Acoustic Voice pream plugin promotes getting lost in creative acoustic tracks production with no boundaries.

New price $7.99
Old price $14.99
Author Nembrini Audio
Type Effect
Effect type Guitar effects, Other
Supports Inter-App Audio (IAA), Audio Unit (AU)

Based on creative techniques developed by studio engineers and producers in the early 1980s, Shimmer Delay Ambient Machine combines reverb, pitch shifting, and feedback to create out-of- this-world soundscapes and spaces.

New price $4.99
Old price $8.99
Author Nembrini Audio
Type Effect
Effect type Reverb, Delay, Echo, Pitch effects
Supports Inter-App Audio (IAA), Audio Unit (AU)

Voice DC30 Custom Valve Guitar Amplifier plugin is characterised by it's "jangly" high-end sound it has become widely recognized by British musicians and others.

New price $9.99
Old price $19.99
Author Nembrini Audio
Type Effect
Effect type Guitar effects
Supports Inter-App Audio (IAA), Audio Unit (AU)

WoodSynth is a synthesizer with 4 independent layers. Each layer is in fact a synthesizer on its own.

New version 2.3
Old version 2.2
Release Notes - Added Sub73 mode : bass note generates more harmonics (generated by OSC2&3) than higher notes played at the same time. - MidiLearn values are now scaled (non-linearly) according to the rotary control, e.g. filter frequency gets much more steps in the lower frequencies. - Added LFO1&2 Depth and LFO1 frequency to the Modwheel and ExpressionPedal destinations. - Fixed sustain pedal bug : when releasing the pedal, also notes still held were released. - Fixed lost midi messages (notes on/off) when “Midi from DAW” was on.
Author Woodman's Immaculate Maple Syrup Studio
Type Instrument
Instrument type Synth
Instrument sounds Keyboards
Supports Audio Unit (AU), Ableton Link

The ultimate orchestra sound app for sophisticated musicians by sound designer Kurt Ader, designed as professional sound module for your iPad, iPhone or iPod touch.

New version 2.3.4
Old version 2.3.3
Release Notes • Adds support for iOS 15. • Adds support for new iPhone 13 models. • Adds support for new iPad 9 and iPad mini 6 models.
Author Christian Schoenebeck d/b/a Crudebyte
Type Instrument
Instrument type Sampler
Instrument sounds Strings, Winds
Supports Inter-App Audio (IAA), Audiobus

FS FreezeVerb is a lush sounding stereo reverb, perfect for both subtle ambience and cavernous reverberation.

New version 1.1.1
Old version 1.1.0
Release Notes Save and load user presets Fix UI issues
Author FutureSonic Ltd
Type Effect
Effect type Reverb, Delay, Echo
Supports Audio Unit (AU)

Knob Lab is a powerful MIDI controller for iOS devices.

New version 2.1.2
Old version 2.1.1
Release Notes New MIDI core Fixes when transmitting pitchbend.
Author Uri Nachmias
Type Controller
Supports Inter-App Audio (IAA)

The Vocal Harmonizer plugin was specifically designed for adding harmonies and basic auto tuning frunctionality to recorded vocal lines. It is specifically tuned to the frequency range of the human voice and tracks the incoming vocal frequency attempting to tune to the desired musical key and mode of your song.

New price $5.99
Old price $7.99
Author 4Pockets.com
Type Effect
Effect type Vocal effects
Supports Audio Unit (AU)

A very easy to use audio editor and recorder.

New version 1.52
Old version 1.51
Release Notes TwistedWave now works fine on iOS 15.
Author TwistedWave Software Ltd.
Type Host
Supports Audiobus

DigiStix 2 is an AUv3 compatible drum machine and sampler plugin for your favourite DAW.

New price $7.99
Old price $10.99
Author 4Pockets.com
Type Instrument
Instrument sounds Drums, Percussion
Supports Audio Unit (AU)

KQ Dixie is a 6-Operator FM synthesizer that is modeled on the synthesizer which appeared on the 1980s.

New version 2.4.6
Old version 2.4.5
Release Notes Updated SDK.
Author Ryouta Kira
Type Instrument
Instrument type Synth
Instrument sounds Keyboards
Supports Audiobus, Audio Unit (AU)

iTablaPro is an electronic tabla and tanpura, ideal for Indian Classical musicians and students.

New version 11.0.3
Old version 11.0.2
Release Notes - iOS 15 compatibility - Minor enhancements to slow Ektaal - Minor enhancements & fixes
Author Prasad Upasani
Type Instrument
Instrument type Sampler
Instrument sounds Strings, Ethnic
Supports Audiobus

A Simple Ad-Free Piano-like Musical Keyboard. Easy to Play, Good Response and Small Application Size. Just Play the Instrument. The app doesn't use sampled real sounds but use FM synthesis. It sounds like piano though it's false.

New version 1.0.13
Old version 1.0.12
Release Notes Updated SDK.
Author Ryouta Kira
Type Instrument
Instrument type Synth
Instrument sounds Keyboards, Piano
Supports Inter-App Audio (IAA)

Podcasts AU is a podcasts audio unit plugin. The audio stream of podcasts is sent to the plugin output instead of going to speakers.

New version 1.0.1
Old version 1.0
Release Notes Update iOS 15
Author Pham Thang
Type Instrument, Tool
Instrument type Sampler
Instrument sounds Other
Supports Audio Unit (AU)

iDousyn is a Mobile Instrument App with a lot of high quality sounds selected for different musical genres.

New price $1.99
Old price $3.99
Author Jorge Lozada
Type Instrument
Instrument type Sampler
Instrument sounds All-in-one
Supports Inter-App Audio (IAA)

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 1.9
Old version 1.8.1
Release Notes iOS 15 compatibility. Framework update. Inter-App Audio compatibility.
Author DiscoDSP LLC
Type Instrument
Instrument type Synth
Instrument sounds Keyboards

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

New version 3.8.1
Old version 3.8
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 3.8: • NEW: Shazam integration (available on latest iOS release) • NEW: master audio output effects using Audio Unit effect plug-ins (available on latest iOS release) • NEW: mixer section with waveforms in Video mode on iPad • Added setting to show bar numbers and minute markers in detail/overview waveforms • Added setting to sync BPM only for manual beat matching • Added setting to choose beat sync interval (1 or 4 beats) • Added setting to show Start CUE button instead of Set/Jump • Added setting to set Start CUE at beginning of loop • Added setting to auto-play when triggering cue point • Added option to load song when previewing tracks in media library • Improved level meters to more accurately reflect audible volume • Improved slip mode and enabled blinking of SLIP buttons on MIDI controllers while slipping • Improved set cue behavior: snap to beat when quantize is ON • Various bugfixes and improvements Version 3.8.1: • Improved usability of dashboard button on iPadOS 15 • Improved MIDI Learn to not dismiss when mapping media library controls • Various bugfixes and improvements If you enjoy the app please support us by rating it on the App Store. We look forward to your feedback!
Author algoriddim GmbH
Type Instrument
Instrument type Sampler
Instrument sounds DJ
Supports Ableton Link

AudioLayer is a full featured open standard audio multi-sampler pushing the boundaries beyond what has been available even in the desktop music production worlds.

New price $14.99
Old price $29.99
Author Harry Gohs
Type Instrument
Instrument type Sampler
Instrument sounds All-in-one
Supports Inter-App Audio (IAA), Audiobus, Audio Unit (AU), Ableton Link

"StepPolyArp Unit" is a real-time polyphonic and polyrhythmic MIDI step arpeggiator and step sequencer. It can be used as a standalone application or an Audio Unit MIDI effect plug-in.

New version 4.3.5
Old version 4.3.4
Release Notes • Added support for iOS and iPadOS 15 • Minor bugs fixed
Author Laurent Colson
Type Instrument, Tool
Supports Audiobus, Audio Unit (AU), Ableton Link