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One Maze point can be Grid-Synth, Sampler and Rhythm at the same time. By the use of several Mazes, each one can be taken for a certain sound element. The Mazes list allows switching Mazes on/ off immediately.

New version 4.01
Old version 4.0
Release Notes 4.01 Bug fixes & improvements Extended presets structure for sets Added demo sets New interface background color in visuals setup Mazetools Soniface Pro is available as iPhone&iPad version on Mac M1+ (Apple Silicon) with activated trackpad touch alternatives to use the trackpad for multitouch 4.0 Improved app performance, structure, sound & visual quality New design mode for small displays Webcam based motion tracking to sound interface New Preset structure for all instruments Rhythm Sequencer Pattern Mode Parametric EQ for Master, Rhythm & Sampler New effects for Sampler & Rhythm Key Interface with chord & scale picker Keys for live instrument input Improved MIDI system, Gridsynth MIDI Out Apple 3D Audio support with HRTF (experimental, Sampler only) New Guide, improved in-app help in english & german Background Audio, Inter-App Audio & Audiobus (experimental)
Author Ectoplastic
Type Instrument
Instrument type Synth
Instrument sounds All-in-one
Supports Ableton Link

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

New version 10.0.121
Old version 10.0.110
Release Notes • Create your own instruments by dragging and dropping or even recording sounds straight into the step sequencer, piano roll, drums or screen keyboard • Save and recall chains of effects and instruments with the new Effects Chains and Instrument Chains menus • New Song Browser view, quickly reload previously saved songs without having to manually manage files • Add some celestial magic to your tracks with the new Shimmer effect • Create otherworldly reverberations with the new Diffuser effect • Assign an icon representing the instrument for a track • Improved Onda Synth instrument • 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)

Castamatic is the app to listen to podcasts on any iOS device.

New version 9.0.11
Old version 9.0.10
Release Notes Version 9.0.11 - Fixed bug preventing the notifications for new episodes from appearing Version 9.0.10 - Fixed bug causing two episodes to play at the same time - Fixed bug causing audio in other apps to be interrupted when Castamatic is launched Version 9.0.8 - Improved memory handling when updating a large number of podcasts - Improved OPML import Version 9.0.6 - Fixed another bug causing crash after changing the audio route - Improved memory handling when subscribed to a big number of podcasts - Minor bug fixes Version 9.0.5 - Fixed rare crash when pausing and changing audio destination - Improved chapter detection and UI for hidden chapters - Bugfix: CarPlay didn't display paused state when ending an episode and preloading the next Version 9.0.4 - Added valueMsatTotal to streaming payload - New handling of audiosession notifications Version 9.0.3 - Fixed bug causing wrong progress displayed when a new episode is loaded but not played - Fixed bug causing wrong chapter title displayed - Fixed wrong rewind button in watch app - Minor bug fixes Version 9.0 - Completely new audio engine. - Support for Podcasting 2.0 "Value Time Split" - Many bug fixes - Fixed resuming from the wrong point in time - Fixed wrong progress reported after an audio session interruption - Fixed audio meters when GapZapper is enabled - Fixed background image in watch player - Fixed crash when pressing share button on iPad - Fixed crash when subscribing a new podcast and immediately dismissing the panel - Improved rss feed caching - Reduce memory usage during RSS feed updates - Fix for boost transactions mistakenly marked as failed - Better handling of low memory conditions - V4V local fees have precedence over remote splits - Fixed missing complication on watch - Trying to fix duplicate entries in the download list Version 8.7 - New integration with GetAlby.com - Globally set stream and boost amount - Minor bug fixes Version 8.6 - Added support for subtitles - Modernized the UI with SF Symbols - Fixed progress indicator during first sync / import - Fix: Respect user indication not to download new episodes when activating iCloud sync - Added option to mark episode listened in player - Small bug fixes Version 8.5 - Chapter artwork is now displayed in CarPlay - New option to pause playing and load next episode in the playlist at the end of the current episode - Improved iCloud sync - Improved background updates - Added titles of inclulded podcasts in playlist cell - Fix for finished episode not marked ad listened in iCloud sync - Fix for a crash when marking all episodes in a playlist as listened - Fix for not resuming playback after some audio interruptions (notifications, calls...) - Many minor bug fixes Version 8 - Renewed CarPlay user interface, with controls for chapters and audio effects. - New optional remaining episodes badges - Podcasting 2.0 support: search for new podcasts on Podcast Index and support your favorite shows with Value4Value Version 7 - Add or play single episodes from a podcast without subscribing - Removed all Google Analytics and Ads libraries to prevent abusive behaviours with user's data. - New "Whats New" panel - New widget Version 6.0 New features: - Automatically skip advertising chapters, intro and outro (configurable for generic and per-podcast keywords and time). - New high performance audio engine, Airplay 2 compatible. - Improved audio effects. - Completely new CarPlay integration. Fixes and improvements: - Finer control of priority podcasts in playlists. - Improved management of onboarding panel. - Many minor bug fixes.
Author Gunp Media Productions
Type Instrument
Instrument type Sampler
Instrument sounds Other
Supports Audio Unit (AU)

FabFilter Pro-Q 2 is a transparent, high-quality equalizer plug-in for mixing and mastering purposes, with up to 24 bands and a gorgeous interface for easy and precise editing.

New version 2.26
Old version 2.22
Release Notes - Added Export Preset Folder command to the preset options menu that enables you to export the entire preset folder, so you can load these presets on Mac or Windows. - Fixed crash when opening the interface in Camelot Pro. - Fixed bug that could cause the pop-up menu to show when soloing a band. - Minor fixes and improvements.
Author FabFilter
Type Effect
Effect type Equalizer, Filter
Supports Audio Unit (AU)

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 2.09
Old version 2.05
Release Notes - Added Show Source Flow option, available via the Add Source '+' button menu. - Added Auto-Collapse Sources option, available via the Add Source '+' button menu. When enabled, expanding one source interface will automatically collapse the others (the default behavior). When disabled, multiple source interfaces can be expanded at the same time. - Added Export Preset Folder command to the preset options menu that enables you to export the entire preset folder, so you can load these presets on Mac or Windows. - Minor fixes and improvements.
Author FabFilter
Type Effect
Effect type Equalizer, Filter, Distortion, Drive etc., Guitar effects
Supports Audio Unit (AU)

Ting provides 12 different percussive sounds originating from t(h)ings that can be found in most of ordinary households.

New price $3.99
Old price $7.99
Author Klevgränd produkter AB
Type Instrument
Instrument sounds Drums, Percussion
Supports Audio Unit (AU)

Metronome for iPhone, is also an intuitive and powerful groove box / drum machine and tempo practice tool.

New version 2.21
Old version 2.20
Release Notes - Send Grooves to Hip Hop Drummer & iBassist
Author Lumbeat
Type Instrument
Instrument type Sampler
Instrument sounds Drums, Percussion
Supports Inter-App Audio (IAA), Audiobus

FabFilter Pro-L 2 is a feature-packed true peak limiter, suitable for transparent mastering as well as single instrument limiting.

New version 2.22
Old version 2.10
Release Notes - Added Export Preset Folder command to the preset options menu that enables you to export the entire preset folder, so you can load these presets on Mac or Windows. - Added Auto-Reset option for loudness metering, available as a toggle option in the Loudness Time Scale menu. When enabled, loudness metering and clipping will be reset every time playback starts in the host app. - Fixed crash when opening the interface in Camelot Pro. - Minor fixes and improvements.
Author FabFilter
Type Effect
Effect type Compressor, Limiter, Gate
Supports Audio Unit (AU)

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

New version 1.32
Old version 1.28
Release Notes - Added Export Preset Folder command to the preset options menu that enables you to export the entire preset folder, so you can load these presets on Mac or Windows. - Fixed crash when opening the interface in Camelot Pro. - Minor fixes and improvements.
Author FabFilter
Type Effect
Effect type Compressor, Limiter, Gate, Other
Supports Audio Unit (AU)

FabFilter Pro-MB is a multiband dynamics plug-in featuring an optimized workflow: up to six compression/expansion bands can be placed freely anywhere in the spectrum.

New version 1.29
Old version 1.25
Release Notes - Added Export Preset Folder command to the preset options menu that enables you to export the entire preset folder, so you can load these presets on Mac or Windows. - Minor fixes and improvements.
Author FabFilter
Type Effect
Effect type Equalizer, Filter
Supports Audio Unit (AU)

Brusfri* is a highly advanced audio noise reducer, packed into a simple and straight-forward interface.

New price $7.49
Old price $14.99
Author Klevgränd produkter AB
Type Effect
Effect type Compressor, Limiter, Gate, Guitar effects, Other
Supports Audiobus, Audio Unit (AU)

The BandHelper app works with your BandHelper account to share info with your bandmates, streamline your management duties and power your live show.

New version 2023-12-18
Old version 2023-12-08
Release Notes • Fixed a problem that prevented updating your saved password in the app.
Author Arlo Leach
Type Tool
Supports Inter-App Audio (IAA)

iFretless Brass enables guitar and string instrument players to play expressive music with a variety of instruments.

New version 4.0.15
Old version 4.0.14
Release Notes Fix crash Inter-App Audio.
Author Mani Consulting Limited Company
Type Instrument
Instrument type Sampler
Instrument sounds Winds
Supports Inter-App Audio (IAA), Audiobus

The app gives you the basis to try out Grid Synth, Sampler & Rhythm. The Guide explains the basic functions to create soundscapes & melodies.

New version 4.01
Old version 4.0
Release Notes 4.01 Bug fixes & improvements Extended presets structure for sets Added demo sets New interface background color in visuals setup 4.0 Improved app performance, structure, sound & visual quality New design mode for small displays Webcam based motion tracking to sound interface New Preset structure for all instruments Rhythm Sequencer Pattern Mode Parametric EQ for Master, Rhythm & Sampler New effects for Sampler & Rhythm Key Interface with chord & scale picker Keys for live instrument input Improved MIDI system, Gridsynth MIDI Out Apple 3D Audio support with HRTF (experimental, Sampler only) New Guide, improved in-app help in english & german Background Audio, Inter-App Audio & Audiobus (experimental)
Author Ectoplastic
Type Instrument
Instrument type Sampler, Synth
Instrument sounds All-in-one
Supports Ableton Link

DAW Cassette is an Audio Unit effect that emulates the sound of a classical tape deck.

New price $6.49
Old price $12.99
Author Klevgränd produkter AB
Type Effect
Effect type Other
Supports Audiobus, Audio Unit (AU)

Play with the sound of a full cathedral organ, created by award-winning sound designer Kurt Ader.

New version 2.3.2
Old version 2.3.1
Release Notes • Fixes issues introduced by iOS 17.
Author Christian Schoenebeck d/b/a Crudebyte
Type Instrument
Instrument type Sampler
Instrument sounds Keyboards
Supports Inter-App Audio (IAA), Audiobus, Audio Unit (AU)

This app is a portable multitrack audio and MIDI recording studio featuring virtual instruments, editing with unlimited undo/redo, mixing, real-time effects, automation and much more!

New version 5.9.9
Old version 5.9.5
Release Notes * FX grids can now be stored and loaded through the Presets menu. * An AUv3 instrument that produces MIDI would always record its MIDI on the track, even without being armed. Solved. * The Tempo marker dialog now takes on the time signature and tempo values of the tempo marker directly before the new one being added. * When opening the MIDI parameter control dialog in Evolution One, Flowtones or Lowtone, the last used parameter is highlighted. * When the ‘Select’ button is active, double-tapping now does not open VTS or enter the piano roll anymore. * Vertical scrolling on the arranger screen is now restricted such that the last track always remains visible. * Cut/Copy/Paste buttons are now available in Select mode as well.
Author Davy Wentzler
Type Host, Instrument, Effect
Instrument type Sampler
Instrument sounds All-in-one
Effect type All-in-one
Supports Inter-App Audio (IAA), Audiobus, Audio Unit (AU)

FRMS is a versatile hybrid synthesizer that combines Granular, FM, Subtractive and Additive synthesis using a flexible layering system.

New price $16.99
Old price $24.99
Author Imaginando Lda
Type Instrument
Instrument type Synth
Instrument sounds Keyboards
Supports Ableton Link

FabFilter Timeless 3 is a versatile, vintage-sounding tape delay, which will fully satisfy your everyday delay needs.

New version 3.06
Old version 3.03
Release Notes - Added Show Source Flow option, available via the Add Source '+' button menu. - Added Auto-Collapse Sources option, available via the Add Source '+' button menu. When enabled, expanding one source interface will automatically collapse the others (the default behavior). When disabled, multiple source interfaces can be expanded at the same time. - Added Export Preset Folder command to the preset options menu that enables you to export the entire preset folder, so you can load these presets on Mac or Windows. - Minor fixes and improvements.
Author FabFilter
Type Effect
Effect type Reverb, Delay, Echo
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 price $19.99
Old price $29.99
Author FabFilter
Type Effect
Effect type Equalizer, Filter
Supports Audio Unit (AU)