What's New

Added a new module to display MIDI Clock/Time.
Fixed a menu display issue.

App Description

NuRack is an AUv3 based multi-channel audio and MIDI effects processor with a difference, it actually allows you to design your own custom effects using the building blocks provided. You have full control over routing which allows you to create complex audio paths in series or parallel. You can choose whether to use the stock interface or create your own custom interface using the built in Interface Builder which allows you to concentrate your audio components into a single customized effect.

NuRack can run in one of two modes. The first providing 3 customizable effects racks which can be switched (manually or via MIDI), providing seemless switching (i.e. delay trails linger whilst another set of effects are faded in). The second mode allows you to route audio through 3 independent audio racks.

A generaous number of audio building blocks are provided covering 12 different categories of effects. These include Chorus, Flanger, Phaser, Leslie, Tremolo, Voice Doubler, Stereo Delay, Tape Delay, Reverse Delay, Reverb, Parametric EQ, Graphic EQ, Pitch Shift, AutoPan, Bit Crusher, Tube Overdrive, Distortion, Velocity Control, Compressor (sidechain), Noise Gate, Gate/Gapper, Multi-Filter, LP/HP Filter, Frequency Splitter, Classic Filters, XY TouchPad, AutoMate, MIDIControl, Pattern Automate, LFO Automate, VU Meters, Vintage Meters, LED Meters, Spectrum Analyser, Light Object, Scope, Splitter, Mixer, Gain, Gate, UnivVibe, TalkBox, Vocoder, Ring Modulation, Harmony, MultiiBand Compressor, MultiBand Splitter, 3:1 Merge, Visual LFO, Noise Generator, SlowMoFX and Hard Limiter. Also an ever expanding number of MIDI effects and audio generators are included. These include MIDI Strummer, MIDI Recorder, MIDI Pads, MIDI Mixer MIDI Monitor and much more.

You also provide the ability to split and combine audio signal using splitters and mixer modules as well as a number of visual elements such as VU Meters, LED Meters, Scopes, Graphs etc.

Some effects such as phaser and flanger are usually controlled by an LFO, but this can be detached and automated remotely. There are a number of modules that allow auomation based on direct touch (X/Y Pads), Visual LFO, Pattern Automation, MIDI input (CC data), or peak/rms level detection. These automation modules can remotely control knobs and sliders throughout your rack.

Simply create a new rack and start adding modules to it. These modules are generally wired up automatically but these connections can be manually routed. Once you have your sound as you wish you can use it 'as is', or switch to Interface Builder mode where you can combine all your modules into a single interface. Elements can be dragged, dropped, resized and coloured as required. Add your own labels, image logos and custom backgrounds before saving your custom component.

Use the X/Y Pad to control your modulation effects by detaching their LFO's. Use MIDI CC data to automate knobs. Use the velocity of an incoming signal to control the cutoff/resonance of a filter (wah) or volume level of a gain control (swell), as NuRack expands, so do the possibilities.


○ Over 70 categorised modules.
○ 3 Input / Output busses supported.
○ Audio & MIDI effect.
○ Multiple audio & MIDI automation options.
○ Seemless transition between racks.
○ Manual audio path routing.
○ Open in presentation mode (auto hides controls).
○ Interface Builder to customize your rack.
○ AUv3 plugin runs in MIDI and none MIDI mode.
○ Add your own Text/Heading and Image/Logos to your design.
○ Compatibility options for DAW's not supporting multi-channels.
○ Dark/Light Modes

Checkout the YouTube channel 'Paul the MusicMan' for demos and tutorials of NuRack.

iPhone Screenshots

(click to enlarge)

NuRack Auv3 FX Processor screenshot 1 NuRack Auv3 FX Processor screenshot 2 NuRack Auv3 FX Processor screenshot 3 NuRack Auv3 FX Processor screenshot 4 NuRack Auv3 FX Processor screenshot 5 NuRack Auv3 FX Processor screenshot 6

iPad Screenshots

(click to enlarge)

NuRack Auv3 FX Processor screenshot 7 NuRack Auv3 FX Processor screenshot 8 NuRack Auv3 FX Processor screenshot 9 NuRack Auv3 FX Processor screenshot 10 NuRack Auv3 FX Processor screenshot 11 NuRack Auv3 FX Processor screenshot 12 NuRack Auv3 FX Processor screenshot 13 NuRack Auv3 FX Processor screenshot 14 NuRack Auv3 FX Processor screenshot 15

App Changes

  • June 27, 2020 Initial release
  • June 27, 2020 New version 1.01
  • June 27, 2020 New version 1.0
  • October 22, 2020 New version 1.23
  • October 22, 2020 Price increase: $9.99 -> $12.99
  • November 11, 2020 New version 1.27
  • November 20, 2020 New version 1.28
  • December 09, 2020 New version 1.30
  • January 26, 2021 New version 1.33
  • May 06, 2021 New version 1.39