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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 $10.99
Author 4Pockets.com
Type Host
Supports Audio Unit (AU)

ArpBud 2 is a MIDI Arpeggiator app where you can create unique arp patterns and be able to arpeggiate your favorite software or hardware synthesizers.

New version 1.8
Old version 1.7.4
Release Notes This version fixes the MIDI Out connections on the standalone app.
Author Cem Olcay
Type Tool
Supports Inter-App Audio (IAA), Audiobus, Audio Unit (AU)

Pianoscaper is a generative music app and virtual instrument that’s easy on the ears and fun to play.

New price $0.99
Old price $1.99
Author Rob Jackson
Type Instrument
Instrument type Sampler
Instrument sounds Other
Supports Inter-App Audio (IAA)

Expand your musical horizon by playing Arabic, Armenian, Balkan, Greek, Klezmer, Persian & Turkish sounds, scales and rhythms.

New version 6.44
Old version 6.43
Release Notes We squashed some bugs in this version along with: - Fixed an issue where Lifetime purchasers could not use their sounds in AUM - Fixed Some Reported Crashes
Author TAQS.IM
Type Instrument
Instrument type Sampler
Instrument sounds Ethnic
Supports Inter-App Audio (IAA), Audiobus, Audio Unit (AU)

Touchscaper is an instrument designed for anyone who wants to make music on their iPad simply by touching the screen.

New price $3.99
Old price $6.99
Author Rob Jackson
Type Tool
Supports Inter-App Audio (IAA)

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

New version 4.1.4
Old version 4.1.2
Release Notes - Fix DirectWave and Pitcher - Fix Keyboard and Transport Bar - Fix CPU meter in project tab - Fix reverb
Author Image Line Software
Type Host
Supports Audiobus

BST100 Super Overdrive guitar amplifier plugin is a perfect emulation of the 90s guitar amplifier Holy Grail!

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

Waverley is the principal instrument in the moodunits collection. It’s sample-based, but it isn’t a fully-fledged sampling app that allows you to load and edit your own samples. Another usage scenario for Waverley is if you’re just sketching out an idea, perhaps on a less-capable device like your iPhone while you’re on the move.

New price $2.99
Old price $4.99
Author Rob Jackson
Type Instrument
Instrument type Sampler
Instrument sounds All-in-one
Supports Audio Unit (AU)

This is an AUv3 compatible stereo parametric equalizer which can be used as a plugin with your favourite DAW such as Cubasis, Meteor, Auria or GarageBand. It supports a graphical interface and presets with stereo metering to monitor signal levels.

New version 1.06
Old version 1.05
Release Notes This is a maintanence release to ensure compatability with the latest OS.
Author 4Pockets.com
Type Effect
Effect type Equalizer, Filter
Supports Audio Unit (AU)

Pure Piano is a professional, multi-sampled concert grand piano with a unique Morph Pad that allows you to explore a multitude of sounds ranging from mellow and intimate tones to surreal, cinematic textures.

New version 2.2
Old version 2.1
Release Notes - If buffer size and/or sampling rate are changed due to app-switching, these changes will be mirrored in the settings dialogue - 64 sample buffer size now available. Please note that very low buffer sizes are more CPU intensive and could potentially cause audio dropouts depending on your device and CPU consumption -New external audio devices are automatically recognized and shown in the settings popover - Instead of “Audio Device” the settings menu now shows the name of the “Audio Output” (“Speaker”, “Headphones” or the name of an attached audio-hardware device). - Optimised note-release handling - Optimised reverse articulation - Bug fix: Fixed issue with Morph Pad cursor locking up in the AUv3 - Bug fix: Fixed Morph Pad Editor background image size - Sustain switch is now animated - Fixed a graphic error in the Morph Pad which occurred on iPhone 13
Author e-instruments lab GmbH
Type Instrument
Instrument type Sampler
Instrument sounds Keyboards, Piano
Supports Inter-App Audio (IAA), Audio Unit (AU)

GuZheng is a Chinese plucked zither that has a history dated back to 500 B.C. It is rich in playing techniques.

New version 7.2
Old version 7.1
Release Notes Bug fixes for iOS9, iOS10, iOS11
Author Supertintin Co., Ltd
Type Instrument
Instrument type Sampler
Instrument sounds Strings, Ethnic
Supports Inter-App Audio (IAA), Audiobus

Guitarscaper is a guitar sampler.

New price $0.99
Old price $1.99
Author Rob Jackson
Type Instrument
Instrument type Sampler
Instrument sounds Guitar
Supports Inter-App Audio (IAA)

Waverley Tables is a sample-based instrument, or “ROMPLER”. It is not a synthesiser that allows you to create your own instruments. Instead, the instruments have already been created.

New price $0.99
Old price $5.99
Author Rob Jackson
Type Instrument
Instrument type Sampler
Instrument sounds Keyboards
Supports Audio Unit (AU)

Waverley XL is a sample-based instrument, or “ROMPLER”.  It is not a synthesiser that allows you to create your own instruments.

New price $0.99
Old price $5.99
Author Rob Jackson
Type Instrument
Instrument type Sampler
Instrument sounds Keyboards
Supports Audio Unit (AU)

Expand your musical horizon by playing Arabic, Armenian, Balkan, Greek, Klezmer, Persian & Turkish sounds, scales and rhythms.

New version 6.43
Old version 6.42
Release Notes We squashed some bugs in this version along with: - Improved Store Performance - Fixed Some Reported Crashes
Author TAQS.IM
Type Instrument
Instrument type Sampler
Instrument sounds Ethnic
Supports Inter-App Audio (IAA), Audiobus, Audio Unit (AU)

The WU (Wrapped Units) Series multiband equalizer exposes the user interface of the systems Audio Unit and makes it available to all host applications that support AUv3 audio processing plugins. Even if those hosts do not support it directly.

New price Free
Old price $3.99
Author Jens Guell
Type Effect
Effect type Equalizer, Filter
Supports Audio Unit (AU)

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

New version 9.7.44
Old version 9.7.42
Release Notes • Improved tool-less editing in PianoRoll: - single tap to add a note - double tap to delete it - long press to select a group of notes • Check that your songs respect loudness standards with the new LUFS and True Peak level metering modes • New standalone Meter plugin • Support for third party MIDI-only plug-ins • Long press and select "MIDI learn" to control buttons and effects parameters using a MIDI controller • 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. Thank you for using n-Track Studio!
Author n-Track S.r.l.
Type Host
Supports Inter-App Audio (IAA), Audiobus, Audio Unit (AU)

A complete Middle Eastern percussion ensemble in your hands including more than 300 Rhythms from Egypt, Morocco, Iran, Persia, Iran, Turkey, Greece...

New price $12.99
Old price $17.99
Author Lumbeat
Type Instrument
Instrument type Sampler
Instrument sounds Drums, Percussion, Ethnic
Supports Inter-App Audio (IAA), Ableton Link

Let the musical muses of Piano Motifs inspire your device to generate some original and beautiful motifs (short melodies).

New version 4.0.0
Old version 3.4
Release Notes • AUv3 MIDI Plug-In In-App Purchase: Incorporate Piano Motifs seemlessly in your workflow by instantiating it once or multiple times in an app that can host AUv3 MIDI Plug-Ins, for example: AUM, AudioBus 3, ApeMatrix or Drambo. Please note that Piano Motifs as an AUv3 MIDI Plug-In will not play any sound by itself, it generates MIDI that can be routed to other apps and effects instantiated in a host. • AUv3 MIDI Plug-In features include: - Ability to play Piano Motifs in sync and out of sync with the host. - State saving functionality. - Independent programmable MIDI channels for melody, accompaniment and an optional third track. - Interactive octave shifting for melody and accompaniment. To purchase the IAP go to More Settings and find AUv3 In-App Purchase.
Author Fernando Morales
Type Tool
Supports Ableton Link

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

New version 9.7.44
Old version 9.7.42
Release Notes • Improved tool-less editing in PianoRoll: - single tap to add a note - double tap to delete it - long press to select a group of notes • Check that your songs respect loudness standards with the new LUFS and True Peak level metering modes • New standalone Meter plugin • Support for third party MIDI-only plug-ins • Long press and select "MIDI learn" to control buttons and effects parameters using a MIDI controller • 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. Thank you for using n-Track Studio!
Author n-Track S.r.l.
Supports Inter-App Audio (IAA), Audiobus, Audio Unit (AU)