Comparison

NuRack Auv3 FX Processor vs EG ClassicFX AU3 Multi effects

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

NuRack Auv3 FX Processor

Design custom audio and MIDI effects racks with over 80 building blocks. Route audio in series or parallel and create unique interfaces for your sound processing needs.

Highlights
  • Design custom effects racks
  • Over 80 audio and MIDI building blocks
  • Full routing control (series/parallel)
  • Customizable interface builder
  • Seamless effect switching
  • 3 independent audio racks mode
  • Extensive automation options
Read full 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 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. Features: ○ 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.

About

EG ClassicFX AU3 Multi effects

This audio effects app provides a suite of classic effects like reverb, delay, and chorus for music production. It allows for deep customization of each effect and offers advanced features like AU3 multi-output and MIDI CC automation. It requires a compatible host app to function.

Highlights
  • 8 classic audio effects
  • Tweakable effects with bypass
  • AU3 multi-output support
  • MIDI CC automation
  • Multitouch effect modulation
  • Live mode for on-the-fly effects
  • Reorderable effect chain
  • Preset saving
Features
Read full description

sEGments FX is a simple, fast and fun to use way to add multieffects to your audio tracks. Features: - 8 classic effects - Reverb, Delay, Flanger, Filter, Auto-Wah, Phaser, Chorus, Tremolo - each effect is tweakable and can be bypassed (double tap on the mix slider) - AU3 multi-output - send each effect to a different output bus - Each parameter can be automated via MIDI cc in your favorite daw - Multitouch effect view to modulate effects to temporary state - Live mode to apply effects on the fly and bypass them on release - Effect chain can be re ordered - Presets saving PLEASE NOTE: This is not a standalone app, but you need an AU3 compatible host like n-Track, AUM, Auria, Cubasis or Beatmaker3

Screenshots

NuRack Auv3 FX Processor4 screens
EG ClassicFX AU3 Multi effects3 screens

Verdict

The call

The clearest difference is price: EG ClassicFX AU3 Multi effects at $3.99 against NuRack Auv3 FX Processor's $12.99. EG ClassicFX AU3 Multi effects also leads on update cadence (every 3 days vs every 3 weeks) and iOS requirement (8.0 vs 13). NuRack Auv3 FX Processor's advantage is ratings volume (41 vs 6). On rating, review sentiment, ads and in-app purchases there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

NuRack Auv3 FX Processor costs $12.99 and EG ClassicFX AU3 Multi effects $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.7 for NuRack Auv3 FX Processor against 4.7 for EG ClassicFX AU3 Multi effects. That said, the two scores are not equally well evidenced: NuRack Auv3 FX Processor has 41 ratings behind it against 6, so its average is the more settled of the two. Written reviews are what separate them: 84% of NuRack Auv3 FX Processor's written reviews are positive against 80% of EG ClassicFX AU3 Multi effects's.

UpkeepUpdate frequency

NuRack Auv3 FX Processor ships an update every 3 weeks, EG ClassicFX AU3 Multi effects every 3 days. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.

Scorecard4 real differences · 6 level
NuRack Auv3 FX Processor versus EG ClassicFX AU3 Multi effects: the parameters behind the verdict, then further details
ParameterNuRack Auv3 FX ProcessorEG ClassicFX AU3 Multi effects
Price$12.99$3.99 — better
Rating4.7 (41 ratings) — better4.7 (6 ratings)
Positive reviews84.4% of reviews — better80.0% of reviews
Number of ratings41 — better6
Update frequencyEvery 3 weeksEvery 3 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS138.0 — better
Further details — not scored
Size26 MB30 MB
Age rating4+4+
Developer4Pockets.comElliott Garage

Customer experience

NuRack Auv3 FX Processor

All ratings42 ratings
Positive92.9%
Neutral2.4%
Negative4.8%
Written reviews32 reviews
Positive84.4%
Neutral6.3%
Negative9.4%

EG ClassicFX AU3 Multi effects

All ratings6 ratings
Positive83.3%
Neutral16.7%
Negative0.0%
Written reviews5 reviews
Positive80.0%
Neutral20.0%
Negative0.0%

In-app purchases

None

NuRack Auv3 FX Processor

No in-app purchases

None

EG ClassicFX AU3 Multi effects

No in-app purchases

Questions

Is NuRack Auv3 FX Processor free?
NuRack Auv3 FX Processor costs $12.99, with no in-app purchases.
Is EG ClassicFX AU3 Multi effects free?
EG ClassicFX AU3 Multi effects costs $3.99, with no in-app purchases.
Which has better reviews, NuRack Auv3 FX Processor or EG ClassicFX AU3 Multi effects?
NuRack Auv3 FX Processor is rated higher. NuRack Auv3 FX Processor averages 4.7 out of 5 from 41 ratings, while EG ClassicFX AU3 Multi effects averages 4.7 from 6 ratings.
Do NuRack Auv3 FX Processor or EG ClassicFX AU3 Multi effects have ads?
Neither NuRack Auv3 FX Processor nor EG ClassicFX AU3 Multi effects shows ads.
Which is updated more often, NuRack Auv3 FX Processor or EG ClassicFX AU3 Multi effects?
NuRack Auv3 FX Processor ships an update every 3 weeks, and EG ClassicFX AU3 Multi effects every 3 days. Most recently, NuRack Auv3 FX Processor was updated on October 25, 2026 and EG ClassicFX AU3 Multi effects on October 24, 2026.

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