NuRack Auv3 FX Processor 4+

Customizable Effect Racks

    • 4.8 • 36 Ratings
    • $12.99



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 80+ 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 over 80 audio and midi building blocks are provided covering 12 different categories of effects. Here are just some of those included in NuRack:

Modulation Effects: Chorus, Flanger, Phaser, Tremolo, Vocal Doubler, TalkBox, UniVibe, Leslie & Vocoder.

Time Based Effects: Stereo Delay, Tape Delay, Reverb and Reverse Delay.

Spectral Effects: Parametric EQ, Graphic EQ, PitchShift, Auto-Pan, Bit-Crusher, Tube Overdrive, Distortion, Harmony, Harmonic Exciter and SlowMo.

Dynamic Effects: VelocityControl, Compressor, Multi-Band Compressor, Noise Gate, Gate, and Limiter.

Filter Effects: MultiFilter, LP/HP Filter, Frequency Splitter, MultiBand Splitter, Classic Filters, Formant Filter, Ring Modulation and Shelf Filter.

MIDI Effects: MIDI Harmony, MIDI Velocity, MIDI Randomizer, MIDI Monitor, MIDI Mixer, MIDI Pads, MIDI Control, Strummer, MIDI Recorder, MIDI Modulation, MIDI Remap, CC Monitor, CC Generator, PitchBend, MIDI Time Clock, and ChordToMidi.

Generator Modules: Noise, Audio Clip Launcher, SoundFont Player, Virtual Flute, Virtual Clarinet, Virtual Brass, FM Organ, FM Rhodes and Analog Sawtooth Synth.

Automation: TouchPad, AutoMate, Pattern Automation, and Visual LFO.

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 80 categorised modules.
○ 3 Input / Output busses supported.
○ Audio & MIDI effect.
○ Lots of 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 and backgrounds 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.

What’s New

Version 1.49

Added the ability to access the soundfonts folder within NuRack using the Web Transfer function to delete and backup SF2 files etc.

Ratings and Reviews

4.8 out of 5
36 Ratings

36 Ratings

sbergman123 ,

This is very cool.

Just starting out using the Ipad for music. I had only the free effects available on the app store, scattered across different auv3's, and of questionable quality and/or abilities. This app gives me every effect I could possibly need and the ability to customize these effects into a single rack, (or multiple racks in series and parallel). ... And, man, can you customize. It has a has a modular toolkit that lets you build all the effects you want, contained in a single effet slot. Mr. Paul knocked it out of the park again.

Neumuzik ,

Just a suggestion

I know this suggestion would represent a significant update to the developer (who is fantastic, by the way), but it would be helpful for users if it was possible to see a graphic representation of each module as a (possibly side-scrolling) list of options which could then be dragged and dropped into the effects chain, or just tapped on to add each module to the chain.

Part of the problem with just seeing a text-based list of options is it’s difficult to visualize the final layout. Making the actual images visible (similar to stickers, perhaps) would drastically speed the review and selection process. Your competition (MixBox CS) has this identical issue. Scrolling through hundreds of descriptions is not as efficient for production as it would be seeing the real components.

Developer Response ,

Loving the idea, and I will definately look into this one for a future update.

Can Diek ,

Used in every one of my projects

This app makes setting up efx so painless and keeps the Auv3 fx slots tidy and simple, setting up racks in just one instance per track where before there’d need to be a bunch of separate apps. Yet, it feels like it barely makes a dent in CPU. It’s got mostly everything, if not everything, one needs, fx wise and more, including a bunch of great MIDI tools. I love it and can’t do without at this point.

App Privacy

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    Up to six family members can use this app with Family Sharing enabled.

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