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Fractal Bits is a drum synth with over four billion unique sounds created by fractal algorithms.

New version 1.2
Old version 1.1c
Release Notes * new option - Hold; if enabled, notes will play endlessly without reacting to key release (noteOff) events; turning the note on again works like turning it off; there are two ways to enable this option: 1) using the Hold parameter in the "MIDI Mapping" window; 2) by pressing the HOLD button, which appears in place of LCK while playing the musical keyboard: press HOLD, release the desired notes - then the released notes will continue to play; * additional highlighting of locked samples; * bug fixes.
Author Alexander Zolotov
Type Instrument
Instrument type Synth
Instrument sounds Drums, Percussion
Supports Audiobus, Audio Unit (AU)

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

New version 10.1.29
Old version 10.0.191
Release Notes • AI Mixsplit: Use the power of AI to remove vocals from a track or extract stems (bass, drums and vocals) from a full mix • Easily audition instrument presets using the new control in the plug-in UI • Importing multitrack MIDI files now assigns the correct instrument for each MIDI track • Beat doctor: a transient detector algorithm for effortless part editing • 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)

Jamm Pro is the anticipated evolution of Ninja Jamm, the original touch controlled beat app. Easy to use but deep, Jamm Pro includes Ninja Jamm users most requested feature: the ability to load your own samples.

New version 1.6
Old version 1.5.4
Release Notes Circular Sampling - get the perfect take. Loops input when Sampling In or Resampling, so on dropping out last take is retained. See Mode page to enable) Audiobus sidepanel - control playback and start/stop recording into Jamm Pro from other IAA enabled apps. Remember to arm, defaults to Channel 4 slot 8 during Circular Sampling unless you have a selected clip slot in Jamm Pro. BPM nudge - hold and drag left or right on BPM value to nudge BPM up/down by 5% till you release your finger (simulates turntable nudge) BPM Semitone shift now on tone arrows in BPM menu FineAdjust BPM now works in PerClip and Repitch All Instant Play (when Link is off), to help synch with eg decks Beats+Pieces timestretch mode - Channel 1 is in Beats, Channels 2-4 in FFT for smooth beat shuffling melodic magic. Improved UI scaling for Dynamic Island on iPhone Jumpstart for Clip Waveforms on Clip Page, update the clipstart location with a tap, can be quantized to 16ths or dynamic based on clip length (See Settings) Stem Recordings now feature channel names. Sampling in - Set Recording type to Phase (Correction) or Normal Scope Visualiser now captures live input when Monitoring is active. Various Bug Fixes and improvements.
Author Ninja Tune
Type Instrument
Instrument type Sampler
Instrument sounds Other
Supports Inter-App Audio (IAA), Audiobus, Ableton Link

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

New price $7.99
Old price $9.99
Author iceWorks, Inc.
Type Instrument
Instrument type Synth
Instrument sounds Keyboards
Supports Inter-App Audio (IAA), Audiobus, Audio Unit (AU), Ableton Link

Meet Aimée, your personal, artificially intelligent built-in assistant composer, she's ready to help you compose great music, adding her vast knowledge about music theory to your creativity.

New version 8.32
Old version 8.31
Release Notes - Added 'solo' button in instrumentation to focus on one composition instruction in note editor. - Added an extra option to protect your changes made in fragments generated by Aimée. Now you can also choose to make the fragment a secondary source. - Bug fixes.
Author Elstar
Type Instrument
Instrument type Sampler
Instrument sounds All-in-one
Supports Inter-App Audio (IAA), Audiobus

Mixvibes introduces the perfect remix toolbox: lay down samples on a grid of pads and tweak them in seconds.

New version 8.0.8
Old version 8.0.7
Release Notes Remixlive 8 introduces one of the most groundbreaking innovations to the remixing formula, completely redefining your music making experience! Version 8.0: You can now create your own soundpacks! - Select from over 12+ different genres ranging from Hip-Hop to Techno - Generate unique packs by combining up to two distinct genres - Set the BPM, Key and enter a custom name for your creation Get ready to generate music endlessly! If you love the new version, make sure to rate the app and follow us on Instagram @remixliveapp Version 8.0.1: - Bug fixes and performance improvements Version 8.0.2: - Bug fixes and performance improvements Version 8.0.3: - Bug fixes and performance improvements Version 8.0.4: - Bug fixes and performance improvements Version 8.0.5: - Bug fixes and performance improvements Version 8.0.6: - Bug fixes and performance improvements Version 8.0.7: - Bug fixes and performance improvements Version 8.0.8: - Bug fixes and performance improvements
Author MIXVIBES
Type Instrument
Instrument type Sampler
Instrument sounds Other
Supports Inter-App Audio (IAA), Audiobus

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

New version 4.5.9
Old version 4.5.7
Release Notes - Fixed a bug preventing some DW Sampler presets from looping correctly
Author Image Line Software
Type Host
Supports Audiobus

ToneBoosters Spectrogram shows a real-time spectrogram of the incoming audio signal. The ToneBoosters Spectrogram app captures the microphone input and processes the signals in real time.

New version 1.5.4
Old version 1.5.0
Release Notes Efficiency and performance improvements Add start/stop functionality
Author ToneBoosters
Type Tool
Supports Inter-App Audio (IAA), Audio Unit (AU)

ToneBoosters ReelBus is a magnetic tape simulation plug-in for iOS or iPadOS device.

New version 4.7.5
Old version 4.7.0
Release Notes Efficiency and performance improvements Master mode VU meter does now not reflect output gain anymore
Author ToneBoosters
Supports Inter-App Audio (IAA), Audio Unit (AU)

Neon is a lightweight digital audio editor and recording plugin compatible with any AUv3 host.

New price $9.99
Old price $14.99
Author 4Pockets.com
Type Instrument
Instrument type Sampler
Instrument sounds Other
Supports Audio Unit (AU)

VOSIS is a synthesizer that uses scanned synthesis of greyscale image pixel data from photos or live video input. It is also a tool for image audification/sonification and visual music performance.

New version 2.2.0
Old version 2.1.3
Release Notes Updated Limiter DSP with smoother response
Author Life Orange LLC
Type Instrument
Instrument type Synth
Instrument sounds Keyboards, Other
Supports Audiobus

This is a AUv3 compatible analyser / tuner which can be used as plugin with your favourite DAW such as Cubasis, Meteor, Auria or GarageBand.

New price $4.99
Old price $7.99
Author 4Pockets.com
Type Tool
Supports 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

MusiKraken is an Experimental MIDI Controller Construction Kit. Make music using your hands, face, voice or by rotating the device!

New version 1.65
Old version 1.64
Release Notes MusiKraken now supports MIDI 2.0! Change to the MIDI 2.0 mode in the general settings to activate it. The app can now send higher resolution and per-note MIDI 2.0 events. It also uses MIDI-CI and UMP Endpoint communication to communicate with other MIDI 2.0 endpoints.  MIDI 2.0 can be sent to other apps or Audio Units (AUv3). And you can install the KrakenMidiConnector on your mac and connect to it from MusiKraken to send MIDI 2.0 events to your computer. There is also a new MIDI Log Viewer to show the MIDI communication. And there is a new Haptics module on iPhones to control the vibration of your phone via MIDI note and CC 1 events, to get haptic feedback for your MIDI controller. The game controller module now also has a haptics input port to get haptic feedback on your game controller.
Author Snarp
Type Tool
Supports Audio Unit (AU)

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

New version 10.1.24
Old version 10.0.191
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 making music with 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)

SideBand Remix is an AUv3 plugin for final mixing and mastering. It separates the phantom center from sideband (L/R) content which is what give a stereo track its width, and lets you remix it.

New price $6.99
Old price $9.99
Author 4Pockets.com
Type Effect
Effect type Equalizer, Filter, Other
Supports Audio Unit (AU)

AI Machine Modeled tones player.

New version 1.2.3
Old version 1.2.2
Release Notes What’s New in v1.2.3: • General reliability improvements. • Fixed possible crash in Audio Unit.
Author IK Multimedia US, LLC
Type Effect
Effect type Distortion, Drive etc., Guitar effects, Bass effects
Supports Audio Unit (AU)

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

New version 9.1.0
Old version 9.0.15
Release Notes Version 9.1 - Added adjustable default settings for audio effects for new podcasts - Apply default settings for audio effects for all existing podcasts - Improved audio buffering when streaming episodes - Fix for freezes while playing episodes 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)

ToneBoosters Morphit is an AUv3 plugin for headphones correction and simulation and removes any unwanted coloration from your headphones!

New version 1.9.5
Old version 1.9.4
Release Notes Stability and efficiency improvements
Author ToneBoosters
Type Effect
Effect type Equalizer, Filter, Other
Supports Inter-App Audio (IAA), Audio Unit (AU)

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

New version 3.2.3
Old version 3.2.1
Release Notes Improved: Fixed appearance when using the zoom function.
Author Ryouta Kira
Type Instrument
Instrument type Synth
Instrument sounds Keyboards
Supports Audiobus, Audio Unit (AU)