Version updates

Funk Drummer is the grooviest drum machine with the ability to improvise like a human drummer.

New version 3.4
Old version 3.1
Release Notes - Support for iBassist - Ableton Link Start / Stop
Author Lumbeat
Type Instrument
Instrument type Sampler
Instrument sounds Drums, Percussion
Supports Inter-App Audio (IAA), Ableton Link

AudioKit Synth One is a completely free & open-source professional iOS Synthesizer. 

New version 0.8.7
Old version 0.8.6
Release Notes Thank you! You'e all wonderful. Your kind words inspire us... + FULL SOURCE CODE for the app has been released: github.com/AudioKit/AudioKitSynthOne + Quick fixes for IAA Hosts (GarageBand, BM3, Cubasis, GarageBand) introduced in last update You are all awesome! We are all volunteering our time to build this app for you. No one gets paid anything. Please spread the word. The more musicians that know about this app, the more musicians we can all reach! Please send bug reports: hello@audiokitpro.com Thank you :)
Author AudioKit Pro
Type Instrument
Instrument type Synth
Instrument sounds Keyboards
Supports Inter-App Audio (IAA), Audiobus, Audio Unit (AU), Ableton Link

bs-16i is a 16 multi-timbral playback sampler. It supports SoundFont and DLS (Downloadable Sounds, and can be used for keyboard instrument, MIDI sound module, and MIDI player.

New version 3.1.1
Old version 3.1
Release Notes - Improve AUv3 UI - On importing from iCloud, multiple files can be selected (Multiple file selection can only be used with iOS 11 and iCloud Drive) - Fix some stability issues - Audiobus SDK 3.0.5 - Fix that MIDI messages from the internal file player were not delivered to Audiobus
Author bismark LLC
Type Instrument
Instrument type Sampler
Instrument sounds Other
Supports Inter-App Audio (IAA), Audiobus, Audio Unit (AU)

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

New version 1.0.2
Old version 1.0.1
Release Notes 1. Fix bugs.
Author Mani Consulting Limited Company
Type Effect
Effect type Equalizer, Filter
Supports Audio Unit (AU)

You found it! Drum Beats+ is the metronome app that improves your timing using great sounding drum beats, not a boring click.

New version 4.0.6
Old version 4.0.5
Release Notes • Performance updates. • Fixed Inter-App Audio Bug. You may now connect to DB+ *before* launching it. Got requests? Send to feedback@ninebuzz.com. Richard & The Ninebuzz Team
Author Ninebuzz Software LLC
Type Instrument, Tool
Instrument type Sampler
Instrument sounds Drums, Percussion
Supports Inter-App Audio (IAA)

Quincy is a musical explorer of Life, a cellular automaton created by J.H.Conway and Quincy Lite is the full version for iPhone. Conway’s Game Of Life has long been of great interest to musicians specifically as a pattern generator.

New version 1.5.6
Old version 1.5.5
Release Notes • This version add improved support for iOS 11 and fixes some minor layout issues.
Author RoGame Software
Type Host
Supports Inter-App Audio (IAA), Audiobus

A deeply sampled iOS instrument with true legato, and the only virtual instrument with Sexiness Control.

New version 1.0.9
Old version 1.0.8
Release Notes 1. Fix au3 bug.
Author Embertone
Type Instrument
Instrument type Sampler
Instrument sounds Winds
Supports Inter-App Audio (IAA), Audiobus, Audio Unit (AU)

Connects to Philips Hue, LIFX, and Nanoleaf Aurora to interact with your lights in tons of different ways.

New version 6.3.4
Old version 6.3.2
Release Notes Minor bug fixes.
Author NRTHRNLIGHTS, LLC
Type Tool
Supports Ableton Link

Turbosounds for Accordion provides many special sounds of the Oberkrainer folk music.

New version 1.17.3
Old version 1.17.2
Release Notes - Transpose in MIDI Player now ignores drums on channel 10
Author Reinhard Rieder
Type Instrument
Instrument type Sampler
Instrument sounds Keyboards, Guitar, Strings, Winds, Ethnic, Other
Supports Audio Unit (AU)

GeoShred Play is an expressive musical instrument with a multi-touch performance surface, coupled with an advanced physical model of a guitar.

New version 2.6.0098
Old version 2.6.0096
Release Notes Bug Fix for Poly Mode
Author Wizdom Music LLC
Type Instrument
Instrument type Synth
Instrument sounds Guitar
Supports Inter-App Audio (IAA), Audiobus

Connects to Philips Hue, LIFX, and Nanoleaf Aurora to interact with your lights in tons of different ways.

New version 6.3.4
Old version 6.3.2
Release Notes Minor bug fixes.
Author NRTHRNLIGHTS, LLC
Type Tool
Supports Ableton Link

Advanced field recorder combined with a sound warp engine and a collection of ready to use dynamic presets.

New version 2.0
Old version 1.9.12
Release Notes With this update you can add rhythmic effects and distortions with using built-in step sequencer. The sequencer and LFOs can be synced with other apps and devices thru MIDI, Inter-App Audio or with Ableton Link. New parametric equalizer can isolate or suppress oscillators output in a certain frequency range so that they not interfere each other. Also you can pack scene and all its presets and samples to single file. This new feature is very useful for copying scene to another device or backup. All changes: ● Added new presets. ● Ableton Link start / stop sync. ● Step sequencer for each oscillator. ● Parametric equalizer for each oscillator. ● Signal amplification before filters and EQ. ● Automatic gain control of output for each oscillator. ● Synced Sequencer / LFOs with Ableton Link, IAA, MIDI. ● Pack scene and all its samples / presets to single file. ● Ableton Link SDK 3.0.2 updated. ● Audiobus SDK 3.0.5 updated. ● Built-in description updated. ● Several minor bugs were fixed.
Author Igor Vasiliev
Type Instrument
Instrument type Sampler
Instrument sounds Other
Supports Inter-App Audio (IAA), Audiobus

Quincy is a unique music composition tool. Its modular approach to interpretation of cellular automata renders Life worlds in styles ranging from Balinese Gamelan music to that of Stockhausen.

New version 1.5.6
Old version 1.5.5
Release Notes • This version add improved support for iOS 11 and fixes some minor layout issues.
Author RoGame Software
Type Host
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 3.6.3
Old version 3.6.2
Release Notes The best musicians and producers deserve the best pro app. And this is why we keep improving Remixlive for you to have the easiest and most complete experience. This version contains some minor fixes and adjustments on some views and when capturing sound using the mic. Keep sending us emails at support@mixvibes.com, your feedbacks are important to us! 
And if you like Remixlive make sure to rate it on the App Store ;) *Fix: capture sound from microphone *Fix: view waveform of an empty pad *Fix: possible crash when loading a pack
Author MIXVIBES
Type Instrument
Instrument type Sampler
Instrument sounds Other
Supports Inter-App Audio (IAA), Audiobus

Turn your iPhone or iPad into a solid Rock Drummer with powerful drum sounds and tons of rhythms to get energetic drum grooves.

New version 5.10
Old version 5.05
Release Notes - Support for iBassist - Ableton Link Start / Stop
Author Lumbeat
Type Instrument
Instrument type Sampler
Instrument sounds Drums, Percussion
Supports Inter-App Audio (IAA), Audiobus, Ableton Link

Sunrizer Synth is a virtual analog synthesizer.

New version 4.01
Old version 4.00
Release Notes - Fixed AU parameter automation issues - Support for iOS 10.3 - Custom arps are visible again
Author BeepStreet
Supports Inter-App Audio (IAA), Audiobus

AudioKit Synth One is a completely free & open-source professional iOS Synthesizer. 

New version 0.8.6
Old version 0.8.5
Release Notes Thank you! You'e all wonderful. Your kind words inspire us to keep improving the app... + Added new "Background Audio" toggle. This toggle is in the "Settings" in the upper left of keyboard. Note: Background audio and processing automatically turn off, unless Synth One is connected to AudioBus, IAA, or a host like GarageBand. That way you don't have to worry about it. However you can override the Background Audio shut down by turning the "Background Audio Always On" toggle to on. (Turning this mode on will use more battery). + New Presets in the DJ Puzzle Bank + Reduced some noise/artifacts when switching presets You are all awesome! We are all volunteers building this app for you. Please spread the word! Please send bug reports: hello@audiokitpro.com Thank you :)
Author AudioKit Pro
Type Instrument
Instrument type Synth
Instrument sounds Keyboards
Supports Inter-App Audio (IAA), Audiobus, Audio Unit (AU), Ableton Link

The TENORI-ON enables people to create music intuitively and without any specialized knowledge about music using a 16 x 16 matrix button pad, and now there is the new TNR-e app that has new tones that capture the essence of dub step, progressive house/EDM, electro and other types of music not previously available.

New version 1.2.2
Old version 1.2.1
Release Notes Fixed a minor bug
Author Yamaha Corporation of America
Type Instrument
Instrument type Synth
Instrument sounds Other
Supports Inter-App Audio (IAA), Audiobus

Launchpad is an app for making and remixing electronic music.

New version 7.6.3
Old version 7.6.2
Release Notes This version contains a few minor bugfixes. We really appreciate your feedback. If you have comments, questions or feature requests, let us know at support@ampifymusic.com. If you like Launchpad and have a minute to spare, please review it in the app store.
Author Focusrite Audio Engineering
Type Instrument
Instrument type Sampler
Instrument sounds Other
Supports Audiobus, Ableton Link

This is a special edition of Mellotronics M3000 50th Anniversary Edition, with every in-app purchase tape included, and with any future tape releases included.

New version 3.7
Old version 3.5
Release Notes This version fixes a 'UI slowdown' issue that emerged recently as a result of iOS version updates. The UI is again silky smooth and performance is fabulous on all supported hardware, including iPad 2.
Author Omenie Limited
Type Instrument
Instrument type Synth
Instrument sounds Keyboards
Supports Audiobus