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DigiStix Drummer is an AUv3 compatible drum machine / sampler plugin. The program has a host of features which allow you to sample your own drumkits and trigger them either using a host application via MIDI or using the inbuilt pattern and song editor which automatically syncs tempo with your DAW.

New version 1.16
Old version 1.15
Release Notes Added a new Randomize Pattern dialog with the ability to choose which pads to randomize, and various options such as probability, pan, pitch, reverse, velocity and effects levels. Added an option to rotate patterns left or right. Works great when randomizing patterns. Added the ability to paste patterns to a particulate page (1-4), great when you want to increase pattern sizes. Fixed an issue which causes stray notes to be added to the grid when muting a track with an Apple Pencil. Other minor fixes.
Author 4Pockets.com
Type Instrument
Instrument type Sampler
Instrument sounds Drums, Percussion
Supports Audio Unit (AU)

With ChordPadX, chord are at your fingertips!  Trigger chords and notes intuitively, with a human touch.

New version 3.6.4
Old version 3.6.1
Release Notes - The AudioUnit no longer requires to be restarted after the Full Unlock is detected. - The AudioUnit can now take various sizes in GarageBand. - Minor improvement to the UI.
Author Mathieu Routhier
Type Tool
Supports Audiobus, Ableton Link

UltraTap is a unique multi-tap effect capable of rhythmic delays, glitchy reverbs, huge pad-like volume swells and extraordinary modulation.

New version 1.0.17
Old version 1.0.16
Release Notes This update adds a new "hold-to-clear" feature to the Hotswitch.
Author Eventide
Type Effect
Effect type Reverb, Delay, Echo
Supports Inter-App Audio (IAA), Audio Unit (AU)

TC-11 is the only fully programmable multi-touch synthesizer for the iPad.

New version 3.3.1
Old version 3.3
Release Notes Bug Fixes: • Navigation bar overlap fixed • Updated to latest Audiobus version Removed: • Audiocopy no longer supported
Author Bit Shape
Type Instrument
Instrument type Synth
Instrument sounds Keyboards
Supports Audiobus

midiSTEPs is a powerful and fun MIDI step sequencer app that sends MIDI note and CC messages to other music apps and external synthesizers.

New version 2.1.0
Old version 2.0.3
Release Notes First of a few updates focusing on small improvements and bug fixes before adding new features: Misc bug and stability fixes Improved AU and Sets menus Latest AB3 Latest Link
Author Arthur Kerns
Type Host, Tool
Supports Inter-App Audio (IAA), Audiobus, Audio Unit (AU), Ableton Link

Now you can play the bass drum with your foot. The most realistic 3D drum app.

New version 1.8.3
Old version 1.8.2
Release Notes New Metal 5 kit for PRO users. It sounds so good!! Few bug fixes
Author Music4Fun LLC
Type Instrument
Instrument type Sampler
Instrument sounds Drums, Percussion
Supports Audiobus

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

New version 1.2.2
Old version 1.2.1
Release Notes Fix for timing calculation that I got spectacularly wrong. This was noticeable when syncing with other apps via Ableton Link, especially so at slow tempos. Imagine a drunk drummer - that sort of thing. Still scope for improvement around timing generally, but this was so incredibly bad, I wanted to get a "quick fix" out ASAP. Sincere apologies. -Rob
Author Rob Jackson
Type Tool
Supports Inter-App Audio (IAA)

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

New version 4.10.0
Old version 4.9.1
Release Notes New in version 4.10: new British Collection models and more
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

Neo-Soul Keys® Studio 2 is the next evolution in electric piano sounds and effects from Gospel Musicians, which features a complete architecture overhaul using our new Pure Synth® structure and licensed VKFX effects.

Author MIDIculous LLC
Type Instrument
Instrument type Sampler
Instrument sounds Keyboards, Piano
Supports Inter-App Audio (IAA), Audio Unit (AU)

Visual EQ Console is a multi-band EQ console with the ability to analyse audio in real time giving a spectrum representation of the frequency response. 

New version 1.06
Old version 1.05
Release Notes More CPU optimisations. Removed the need to use iOS timers.
Author 4Pockets.com
Type Effect
Effect type Equalizer, Filter
Supports Audio Unit (AU)

With ChordPadX, chord are at your fingertips!  Trigger chords and notes intuitively, with a human touch.

New version 3.6.1
Old version 3.5.2
Release Notes - The AudioUnit no longer requires to be restarted after the Full Unlock is detected. - The AudioUnit can now take various sizes in GarageBand. - Minor improvement to the UI.
Author Mathieu Routhier
Type Tool
Supports Audiobus, Ableton Link

This shimmer effect is a combination of effects that creates an etherial wall of sound. The effect combines a digital delay and pitch shifter to create multiple harmonies before entering a rich long reverb with controllable filtering. The resulting effect is a monsterously huge sound adding a spacious atmospheric quality to any lead instrument or vocal.

New price $4.99
Old price $6.99
Author 4Pockets.com
Type Effect
Effect type Reverb, Delay, Echo, Pitch effects
Supports Audio Unit (AU)

DigiStix Drummer is an AUv3 compatible drum machine / sampler plugin. The program has a host of features which allow you to sample your own drumkits and trigger them either using a host application via MIDI or using the inbuilt pattern and song editor which automatically syncs tempo with your DAW.

New version 1.15
Old version 1.13
Release Notes Fixed an issue which caused some notes to be erased when recording from external MIDI keyboard. Added a basic randomize pattern feature. This will be greatly enhanced in future versions.
Author 4Pockets.com
Type Instrument
Instrument type Sampler
Instrument sounds Drums, Percussion
Supports Audio Unit (AU)

TC-Data is a MIDI and OSC (Open Sound Control) controller that sends messages to other apps and hardware.

New version 2.2.1
Old version 2.2
Release Notes Bug Fixes: • Navigation bar overlap fixed • Updated to latest Audiobus version
Author Bit Shape
Type Controller
Supports Inter-App Audio (IAA)

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

New version 9.1.2
Old version 9.1.1
Release Notes New: n-Track Studio 9.1 • Introducing the Loop Browser: Simply drag & drop audio loops into your n-Track project. Import sounds or use our in-app sample packs. • Follow Song BPM & Pitch Shift quickly with dropdown menus on audio loops. No need for extra plugins. • Upgrade to Suite Edition: Unlock royalty-free loops, exclusive Beats, 400+ playable instruments, and editable n-Track Studio projects to supercharge your productions. New in n-Track 9.1.2: • various bug fixes and enhancements If you like this app, please leave a review & help us to keep making n-Track better for you. If you have comments or bug reports please let us know at support@ntrack.com Thanks for using n-Track Studio!
Author n-Track S.r.l.
Supports Inter-App Audio (IAA), Audiobus, Audio Unit (AU)

Explore unreal synthesis with the most unique performance control on iOS! TC-Performer presents a multi-touch performance environment unlike any other synthesizer.

New version 1.3.1
Old version 1.3
Release Notes Updates: • Updated to latest Audiobus version
Author Bit Shape
Type Instrument
Instrument type Synth
Instrument sounds Other
Supports Inter-App Audio (IAA), Audiobus

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

New version 1.6.27
Old version 1.6.25
Release Notes - Fixed an issue with opening sessions from Mail. Last update: - Added session sharing: Now you can export and share Loopy sessions, or export/share the individual samples from each session. - Adjusted Tap Tempo function to only start the clock after four taps (and added a setting in Advanced Settings to disable starting the clock entirely).
Author A Tasty Pixel
Type Host
Supports Audiobus, Ableton Link

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

New version 1.2.0
Old version 1.1.5
Release Notes * Added MIDI mapping takeover mode setting to the settings screen * Added MIDI mapping range setting * Update to Audiobus SDK 3.0.10
Author iceWorks, Inc.
Type Instrument
Instrument type Synth
Instrument sounds Keyboards
Supports Inter-App Audio (IAA), Audiobus, Audio Unit (AU), Ableton Link

miRack is a Eurorack-style modular synthesizer. It aims to provide user experience and audio quality close to those of the real Eurorack hardware.

New version 1.67
Old version 1.66
Release Notes =BUG FIXES= * Audio engine fixes and improvements. =APP FEATURES= * New Bluetooth MIDI Devices item in the Tools menu allows to connect to wireless MIDI controllers. * Copy Preset / Paste Preset operations in module menu now use system clipboard. This can be used to store module presets until a built-in preset manager is implemented.
Author mifki Limited
Type Instrument
Instrument type Synth
Instrument sounds Keyboards
Supports Inter-App Audio (IAA), Audiobus

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

New version 10.1.2
Old version 10.1.1
Release Notes - Fixed issue with Shuffle stop not playing last Sam v10.0: ==== - Support for iOS 13 - Support for newer iPhone X-class devices with new UI - All new & improved audio engine - Improved recording quality & controls (NOTE: Recording requires additional in-app purchase) - Updated support for Inter-App Audio & Audiobus v3 - Various minor enhancements & fixes
Author Prasad Upasani
Type Instrument
Instrument type Sampler
Instrument sounds Strings, Ethnic
Supports Audiobus