Version updates

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

New version 0.9.1
Old version 0.9.0
Release Notes You're all amazing! UPDATE: New ANTI-ALIASING feature! It can be toggled on/off on each preset in the Main panel. Anti-aliasing provides cleaner/warmer sound in the upper registers. Thank you for making Synth One global for all musicians. Thanks for the NEW translations: + CHINESE by Jennifer Li + JAPANESE by Chamin Morikawa + PORTUGUESE by Paulo Ribeiro We're grateful for such talented musicians spreading music & joy across the world. 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

Set List Maker is an organizational tool for musicians. The app is packed with features to manage your repertoire, control your on-stage electronics and share with your bandmates.

New version 5.3.5
Old version 5.3.4
Release Notes - Added View Document, Start/Stop Recording and Send MIDI remote control actions. These actions simulate pressing the corresponding button on the screen, and select either the default item or the last-selected item for each button. The Send MIDI remote control action also follows the Send MIDI Presets Together setting. - Updated the Send Layout MIDI layout action to send all the layout MIDI presets, not just the first one, and added a Send Layout MIDI remote control action that works the same way. - Updated the automation tracks to record and play back Send Layout MIDI actions. - Updated the counts at the top of the list pages to show the number of matching items when searching. Also, restored the missing search field on the Shows list and added a search field to the Layouts list. - Fixed a problem that disabled ChordPro and OnSong files in the file browser when OnSong is installed on the same device. - Fixed some invisible text colors in the file import and export windows. - Removed the Browse button that appeared between clicking an import button and the opening of the file browser. - Removed the double toolbar that appeared at the top of the Add an Item popup when editing a layout.
Author Arlo Leach
Type Tool
Supports Inter-App Audio (IAA)

A highly tweakable stereo dynamics processor with noise gate, compressor/expander with external side-chain input, and limiter/clipper.

New version 1.1.4
Old version 1.1.3
Release Notes Removed the IAA switcher panel, since using this sometimes crashed iOS system processes, rebooting the device! (Sudden black screen with spinning wheel). Also updated to Audiobus SDK 3.
Author Kymatica AB
Type Effect
Effect type Compressor, Limiter, Gate, Other
Supports Inter-App Audio (IAA), Audiobus

A 4-band parametric stereo equalizer for everything between subtle frequency enhancements and agressive boosting/cutting or special resonator effects.

New version 1.2.4
Old version 1.2.3
Release Notes Removed the IAA switcher panel, since using this sometimes crashed iOS system processes, rebooting the device! (Sudden black screen with spinning wheel). Also updated to Audiobus SDK 3.
Author Kymatica AB
Type Effect
Effect type Equalizer, Filter
Supports Inter-App Audio (IAA), Audiobus

Brazilian Drum Machine is a complete brazilian rhythm section in your device.

New version 4.1
Old version 4.0
Release Notes - Fill Play/Stop Button Added - Support for iBassist - Ableton Link Start / Stop - Fixed bugs
Author Lumbeat
Type Instrument
Instrument type Sampler
Instrument sounds Drums, Percussion, Ethnic
Supports Inter-App Audio (IAA), Audiobus

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

New version 1.50
Old version 1.30
Release Notes fixes for new iOS update
Author Aleksandar Mlazev
Type Effect
Effect type Pitch effects
Supports Audio Unit (AU)

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

New version 3.6.4
Old version 3.6.3
Release Notes The best producers and musicians 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 several audio fixes and adjustments. 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 ;) * Fixed continuous sync of pads could lead to distortion. * Fixed possible audio glitches with repeating triggers of drum pads. * Fixed possible crash when exporting pack to zip. * Fixed reset BPM was not kept in pack if not changed afterwards. * Fixed wrong gain (+6dB) when loading a single sample in a pad. * Fixed possible crash when dealing with extreme BPM differences. * Fixed crash when loading corrupt ogg files.
Author MIXVIBES
Type Instrument
Instrument type Sampler
Instrument sounds Other
Supports Inter-App Audio (IAA), Audiobus

JamUp is an easy to use drag-and-drop interface that features amps, stomp-boxes and rack effects, all in a single app.

New version 3.6.33
Old version 3.6.32
Release Notes Hi there, This latest update improves the sound of the Phase Tube for Blues/Insane Poweramp importing from BIAS AMP 2. Rock On! The Positive Grid Team
Author Positive Grid Inc
Type Effect
Effect type Reverb, Delay, Echo, Compressor, Limiter, Gate, Distortion, Drive etc., Modulation effects, Pitch effects, Guitar effects, All-in-one
Supports Audiobus

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

New version 1.5.9
Old version 1.5.8
Release Notes - 5 new drum sets for PRO users! 2 Metal, 2 Rock and 1 Jazz kit. More coming soon ;) - Added screen so that you can request songs to be added to the DK Music service in the coming months. DrumKnee 3D is a one man endeavor and the result of countless hours of work, so please consider buying the PRO version or subscribing to DK Music to support the developer.
Author Music4Fun LLC
Type Instrument
Instrument type Sampler
Instrument sounds Drums, Percussion
Supports Audiobus

JamUp is delightful way to jam and practice on your iPad and iPhone.

New version 3.6.33
Old version 3.6.32
Release Notes Hi there, This latest update improves the sound of the Phase Tube for Blues/Insane Poweramp importing from BIAS AMP 2. Rock On! The Positive Grid Team
Author Positive Grid Inc
Type Effect
Effect type Equalizer, Filter, Reverb, Delay, Echo, Compressor, Limiter, Gate, Distortion, Drive etc., Modulation effects
Supports Audiobus

Medly takes a new approach to the way music is made, letting both seasoned and new musicians make epic music. Just pick your instruments, draw notes, record & sing, and drag & drop one of over 700 loops or samples.

New version 4.2.2
Old version 4.2.1
Release Notes Some big and exciting changes! A new Track Panel - Updated styling to match iOS 11’s design, with large, bold titles - Easier and clearer navigation between Packs, Instruments, Library and Options Support for Wide Color - We've updated our colors to take advantage of wide color P3 displays - Now shows more vibrant and exciting colors on Apple's latest devices - Devices that support wide color include: iPhone 7, 7+, 8, 8+, X and iPad Pro - Other improvements - Bug fixes
Author Medly Labs Inc.
Type Instrument
Instrument type Sampler
Instrument sounds Other
Supports Inter-App Audio (IAA), Audiobus, Ableton Link

Scythe is a synthesis engine. The controls have been minimised to allow a simple workflow with the same complex modulation that you might be used to.

New version 1.6
Old version 1.5.8
Release Notes Wavetable Creator is now integrated with system for previewing your creations. Filter Delay has been added to preset state Bugfix: Fix crackling/pops on note release General bug fixes and improvements.
Author Sonic Sector Ltd
Type Instrument
Instrument type Synth
Instrument sounds Keyboards
Supports Inter-App Audio (IAA), Audiobus

Xequence is an advanced linear MIDI Sequencer and Keyboard / Controller for iPhone and iPad.

New version 1.8
Old version 1.7.6
Release Notes COMPLETE AUDIOBUS 3 SUPPORT: - SIDEBAR: Audiobus sidebar for switching between connected apps, with access to all Xequence transport controls (Play, Stop (the Rewind icon) and Record) from any other Audiobus app. - SYNCHRONIZATION: Full synchronization (Start, Stop, Tempo, Phase). Please note that Ableton Link has to be enabled in Xequence, all participating apps, and Audiobus. - MIDI OUT: 16 Audiobus MIDI Out ports for connecting up to 16 Xequence instruments to 16 separate Audiobus MIDI lanes or apps. Displays connected apps' names inside Xequence. - COMPATIBILITY NOTE: Some apps hosted in Audiobus as a MIDI receiver might not work correctly due to implementation issues in these apps. In these cases, please send the MIDI directly to the app (do not put the target app on Audiobus' MIDI screen. Instead, put it as a source on the Audio screen and select the app itself as the MIDI Destination on Xequence's instruments screen). This problem can only be fixed by the receiver app developers. - MIDI IN: Audiobus MIDI In port for recording the MIDI output of other Audiobus apps. (all input will currently be merged to a single track, i.e. multitrack MIDI recording is not yet supported, but will be in a future update.) - MIDI THRU: Xequence's usual MIDI Thru will also work inside Audiobus, passing whatever is received from the MIDI lane OR from any other source selected in Xequence's settings to the current track's instrument, which can be an Audiobus destination, hardware, OR another app. - STATE SAVING AND RESTORE: Xequence will save the current project, including all modifications done since the last save, in the Audiobus preset, and restore it when a preset is recalled. - MIDI MERGE: Xequence merges all MIDI input both from the Audiobus lane AND any other MIDI sources, both hardware and software, and can record it or send it to the current track's instrument (MIDI Thru). - Please note that Audiobus MIDI and State Saving still are very new and evolving technologies, and you may encounter issues which are caused by problems in third-party apps. However, please do let us know if you have a problem that you suspect might be due to a Xequence bug, and we're happy to investigate! IMPROVEMENTS: - MIDI Input has been cleaned up: The "Any" source has been replaced by "Xequence Destination" and can be enabled alongside the other available sources. To send MIDI to "Xequence Destination", most apps have a menu that will list "Xequence Destination" so you can send to it. Of course, the other way around (Xequence actively connects to other sources) is still available by enabling one of the other sources in the "Select MIDI sources" panel. - Better contrast for instrument colors in "Light" theme. - Pianoroll: When switching between note and velocity editing, scroll and zoom are now preserved. - Various optimizations. FIXES: - Pianoroll: Fix vertical scrolling of keys on the left sometimes not in sync with scroll position of editor. - Pianoroll: Fix slightly wrong vertical zoom in Drum editor mode when using "Zoom All" with the ruler enabled and "Ruler Auto-Dismiss" disabled. - Keyboard: Fix sliders with "Return" option sometimes not returning to their zero position.
Author Seven Systems Cross-Platform Media Limited
Type Controller
Supports Audiobus

GridInstrument lets you play your iOS device like a musical instrument. Instead of a piano keyboard, notes are arranged on a grid.

New version 0.9.3
Old version 0.9.2
Release Notes Small update: GridInstrument now accept MIDI note input! MIDI input causes grid squares (and Launchpad lights) to light up. This is useful if, for example, you use GridInstrument in conjunction with an arpeggiator (such a Ruismaker's Rozeta Arpeggio) and want to see what notes the arpeggiator is triggering.
Author Decidedly, LLC
Type Controller
Supports Audiobus

Traditional musical instruments are difficult to learn because notes are arranged based on physical constraints.  Musix Pro arranges notes based on their harmonic and musical relationships instead, allowing shapes and patterns to emerge that unlock the mathematical beauty of music.

New version 2.3.5
Old version 2.3.4
Release Notes - Bluetooth MIDI Peripheral - Dynamic Touch Velocity Bug Fix (when using overlap)
Author Shiverware
Type Host
Supports Audiobus

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 2.14
Old version 2.13
Release Notes - Optimized memory usage so you can add more Pro-Q 2 plug-in instances to a session, and opening sessions with many instances is faster. - Improved the position of the EQ parameter value display in the interface so it is less likely to be obscured by your finger while dragging an EQ band.
Author FabFilter
Type Effect
Effect type Equalizer, Filter
Supports Audio Unit (AU)

iFretless Bass is a professional virtual instrument that provides bass and guitar players with an expressive fretless playing surface.

New version 4.1.2
Old version 4.1.1
Release Notes - New MIDI mode for AU3
Author Mani Consulting Limited Company
Type Instrument
Instrument type Sampler
Instrument sounds Bass
Supports Inter-App Audio (IAA), Audiobus

Soft Drummer is the closest thing to a pro session subtle drummer in your pocket.

New version 2.23
Old version 2.22
Release Notes - Fill Play/Stop Button Added - Support for iBassist - Ableton Link Start / Stop - Fixed bugs
Author Lumbeat
Type Instrument
Instrument type Sampler
Instrument sounds Drums, Percussion
Supports Ableton Link

Englitina is an authentic-sounding English Treble Concertina for the iPad.

New version 4.4
Old version 4.3
Release Notes New feature: Transposition Touch the 'i' to bring up the controls where you may transpose the pitch up or down up to one octave in semitone increments. Touch the number to the right of the transpose slider to reset the transpose to zero. When transposed, the note labels do not change, just the pitch produced.
Author Michael Eskin
Type Instrument
Instrument type Sampler
Instrument sounds Keyboards, Ethnic
Supports Inter-App Audio (IAA), Audiobus

FS Refraktor is an innovative twist on modulation effects, inspiring the exploration of new sonic territory. Sitting somewhere between a delay and a flanger, FS Refraktor offers endless possibilities, from rhythmic flanging to chaotic pitch modulation and unpredictable stuttering.

New version 1.0.2
Old version 1.0.1
Release Notes Fixed occasional crash issues when used as AUv3 plugin Optimised processing algorithm Fixed UI bugs
Author FutureSonic Ltd
Type Effect
Effect type Reverb, Delay, Echo, Chorus, Flanger, Phaser etc., Modulation effects, Other
Supports Audio Unit (AU)