Version updates

With iziCast you can send audio from the internal microphone, external audio devices or Audiobus compatible apps to Icecast and Shoutcast servers.

New version 1.4.1
Old version 1.4.0
Release Notes • Fixes audio issues if monitoring is enabled • Fixes audio issues with VoiceOver • Fixes wrong names and description of UI elements when using VoiceOver
Author Daniel Noethen
Type Tool
Supports Audiobus

SKIIID is a new drum-synthesizer with 4 expressive pads and the possibility to morph between them.

New version 1.17
Old version 1.16
Release Notes fixed: - step-sequencer and step-selectionstep - default states for tempo and step-selection
Author Stephan Bolch
Type Instrument
Instrument type Synth
Instrument sounds Drums, Percussion
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 3.1
Old version 3.0.4
Release Notes - iOS 14 ready - Audiobus/IAA, improved MIDI Receive - Updated Audiobus SDK - Updated AudioCopy SDK - Updated ABLink SDK - Host mixDown/freeze works for toggles
Author apeSoft
Type Instrument
Instrument type Synth
Instrument sounds Keyboards
Supports Inter-App Audio (IAA), Audiobus

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

New version 2.10.9
Old version 2.10.6
Release Notes • Fix adding SF2 file via Share action • Better accounting of what happened when adding multiple SF2 files at the same time • Bug fixes to reduce chance of crashing inside CoreAudio routines
Author Brad Howes
Type Instrument
Instrument type Synth
Instrument sounds Keyboards
Supports Audio Unit (AU)

Harmonizer is real time audio pitch shifter effect that can mix harmonies into the original signal or run as realtime pitch shifter.

New version 1.70
Old version 1.50
Release Notes iPhone 11 UI fixes and iPad crash fix
Author Aleksandar Mlazev
Type Effect
Effect type Pitch effects
Supports Audio Unit (AU)

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

New version 2.7
Old version 2.5
Release Notes • Added the ability to lock a motif's chord progression (with its key, scale, time signature and accompaniment) so that the next generated motif can use it again. • Added programmable accompaniment styles. Seven different accompaniment styles are now available. • Removed info button. All motif information and button labels are now displayed by default. • Fixed iOS 14 issue where BPM slider was defaulting to minimum value and not the default value of 120 BPM. • Optimized MIDI Out MIDI Note Off messages at end of a motif. • Added chord progressions.
Author Fernando Morales
Type Tool
Supports Ableton Link

Atomizer is a great plugin for adding beat synced glitch and stuttering, pitch shifting and various forms of filtering effects to your songs.

New version 1.02
Old version 1.01
Release Notes Fixes a possible crash when controlling the pad using the pitch wheel. Also defaulted the pitch wheel setting to 0 to allow note velocities to control the intensity of the effect more easily.
Author 4Pockets.com
Type Effect
Effect type Pitch effects
Supports Audio Unit (AU)

Now available as an Audio Unit extension (AUv3) allowing it to act as a powerful MIDI sequencer and clip launcher.

New version 1.8.0
Old version 1.7.6
Release Notes - MIDI CC automations - Visual review of all modules - Fixed AUv3 MIDI playback drift - Performance improvements - General bug fixes and optimizations
Author Imaginando Lda
Type Tool
Supports Audio Unit (AU)

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 2.0.1
Old version 1.3.0
Release Notes 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)

Zeeon is a virtual analog synthesizer, powered by an advanced analog circuit modeling engine.

New version 1.54
Old version 1.52
Release Notes - Added work-around for an issue with AudioUnit state loading on iOS14
Author BeepStreet
Type Instrument
Instrument type Synth
Instrument sounds Keyboards
Supports Audio Unit (AU)

FabFilter Pro-R is an algorithmic reverb plug-in with natural sound and intuitive controls.

New version 1.09
Old version 1.08
Release Notes Fixed a problem that caused the interface to not show up on iOS 14 the first time it is opened.
Author FabFilter
Type Effect
Effect type Reverb, Delay, Echo
Supports Audio Unit (AU)

Blue Mangoo Parametric Equalizer is an audio unit plugin, with six bands of filter controls.

New version 1.0.24
Old version 1.0.23
Release Notes Support for user presets.
Author Blue Mangoo Consulting Company Limited
Type Effect
Effect type Equalizer, Filter
Supports Audio Unit (AU)

Xequence is a MIDI sequencer, editor, arranger & controller for iPhone & iPad.

New version 2.2.14
Old version 2.2.13
Release Notes - Update Audiobus and Ableton Link SDKs. - New iOS 14 privacy restrictions now require user permission to be able to use Audiobus and Ableton Link. - Improve stability with iOS 14 and Audiobus as far as possible (there are still many compatibility and stability issues that have to be resolved by third party developers).
Author Alexander Ewering
Type Tool
Supports Audiobus, Ableton Link

Stage Traxx is an audio player designed for professional musicians working with backing tracks. With Stage Traxx 3, controlling your live performance will be easier than ever before.

New version 3.2.6
Old version 3.2.5
Release Notes CHANGED * Improved compatibility with iOS14 FIXED * Airturn devices not automatically connecting after restart
Author Peter Dikant
Type Instrument
Instrument type Sampler
Instrument sounds Other
Supports Audiobus

FabFilter Saturn 2 is a high-quality distortion/saturation plug-in with a huge range of distortion models ranging from subtle to screaming vintage amp modelling, multiple frequency bands, hugely flexible modulation system, and a very modern, well-designed user interface.

New version 2.02
Old version 2.01
Release Notes Fixed a problem that caused the interface to not show up on iOS 14 the first time it is opened. Improved CPU efficiency for many distortion styles.
Author FabFilter
Type Effect
Effect type Equalizer, Filter, Distortion, Drive etc., Guitar effects
Supports Audio Unit (AU)

SKIIID is a new drum-synthesizer with 4 expressive pads and the possibility to morph between them.

New version 1.16
Old version 1.15
Release Notes added iphone-support added step-length-selection
Author Stephan Bolch
Type Instrument
Instrument type Synth
Instrument sounds Drums, Percussion
Supports Inter-App Audio (IAA), Audiobus, Audio Unit (AU), Ableton Link

FabFilter Pro-G is a gate/expander plug-in for mixing and mastering purposes, with flexible side chain options.

New version 1.25
Old version 1.24
Release Notes Fixed a problem that caused the interface to not show up on iOS 14 the first time it is opened.
Author FabFilter
Type Effect
Effect type Compressor, Limiter, Gate, Other
Supports Audio Unit (AU)

FabFilter Pro-Q 3 is an EQ plug-in with up to 24 bands, analog modeling, dynamic EQ, linear phase processing.

New version 3.16
Old version 3.15
Release Notes Fixed a problem that caused the interface to not show up on iOS 14 the first time it is opened.
Author FabFilter
Type Effect
Effect type Equalizer, Filter
Supports Audio Unit (AU)

MultitrackStudio for iPad is an audio/MIDI multitrack recording app. It comes with many high quality audio effects including a guitar amp simulator.

New version 3.9.1
Old version 3.9
Release Notes • Automation editors (Pro Extension), MIDI controller editors and Automated Fader effects: the Dots Editor pane that pops up on clicking EDIT when multiple dots are selected now offers several new functions. Sine or triangle shapes can be created, either in Hertz or in beats. Amplify and the new Vertical Shift can gradually fade in or out. • SysEx editor supports "sequencer specific meta events". They aren't sent to MIDI instruments (MIDI doesn't allow for that), but they are saved in MIDI files. • Songs with huge amounts of automation data save/open faster (Pro Extension). • Quantize and custom grid resolutions can now go up to 16/4. • MIDI file import/export: Some tweaks regarding SysEx messages. Messages like "XG On" will now appear in exported MIDI files before any other messages if you make sure it's at position 0. • Fixed: MIDI Patterns could disappear if the Song Editor's insert options were used. • Fixed: presets exported from desktop version weren't always imported correctly. • Fixed: Document Picker crashed the app in iOS 9 and 10. • Fixed many significant issues that caused exception errors. Thanks for sending error reports!
Author Giel Bremmers
Type Host
Supports Inter-App Audio (IAA), Audiobus, Audio Unit (AU)

FabFilter Pro-C 2 is a compressor plug-in with a side chain options and a program-dependent compression styles.

New version 2.11
Old version 2.10
Release Notes Fixed a problem that caused the interface to not show up on iOS 14 the first time it is opened.
Author FabFilter
Supports Audio Unit (AU)