Comparison

BLEASS Shimmer vs NuRack Auv3 FX Processor

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

Head to head
About

BLEASS Shimmer

This app offers a unique pitch-shifting reverb effect to enhance musical performances. It allows for creative sound design by emphasizing harmonics and revealing new tonal colors through its versatile processing stages. The intuitive interface and included presets make it easy to explore a wide range of spatial and ambient effects for various instruments and vocals.

Highlights
  • Unique pitch shifting reverb
  • Harmonic emphasis and tonal color
  • Multi-mode input filter
  • Dual pitch shift modules
  • Clean and rich reverb
  • Integrated ducker for rhythmic effects
  • Intuitive user interface
Currently charting
Read full description

The unique pitch-shifting reverb in BLEASS Shimmer makes performances dance and sing in ways you never imagined possible. Harmonics are emphasised and new tonal colours emerge as luscious washes of reverb thicken and harmonise with your performance, opening up a whole new creative dimension of spatial and ambient effects. The flexible processing architecture makes BLEASS Shimmer a highly versatile plugin overflowing with creative musical possibilities. Shape the incoming sound with the multi-mode input filter, place the two pitch-shift modules at different points in the signal chain for wildly different results, and combine them with a clean, rich reverb. An integrated ducker helps the direct signal stand out from the reverb and is perfect for rhythmic and blooming effects. This vast sonic potential is easy to tame, both live and in the studio, thanks to a clear and tactile interface designed for hands-on exploration. More than 30 included presets reveal the depth of possibilities on offer while providing great starting points for your own sound designs. From guitars and synth pads to leads, vocals and drums, BLEASS Shimmer brings exciting new dimensions to your musicianship. More information and technical specifications available on https://www.bleass.com/shimmer/ BLEASS Shimmer can be launched as an AUv3 plugin or as a standalone app. BLEASS Shimmer is also available for Windows, and macOS.

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
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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.

Screenshots

BLEASS Shimmer3 screens
NuRack Auv3 FX Processor4 screens

Verdict

The call

The clearest difference is update cadence: NuRack Auv3 FX Processor at every 3 weeks against BLEASS Shimmer's every 10 months. NuRack Auv3 FX Processor also leads on iOS requirement (13 vs 15.0). BLEASS Shimmer's advantage is price ($6.99 vs $12.99) and review sentiment (100% vs 84%). On ratings volume, ads, in-app purchases and monetization model 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

BLEASS Shimmer costs $6.99 and NuRack Auv3 FX Processor $12.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

BLEASS Shimmer holds the better App Store score, 4.9 against 4.7. Both are backed by a comparable volume of ratings — 36 and 42 respectively. Written reviews point the same way: 100% of BLEASS Shimmer's written reviews are positive against 84% of NuRack Auv3 FX Processor's.

UpkeepUpdate frequency

BLEASS Shimmer ships an update every 10 months, NuRack Auv3 FX Processor every 3 weeks. The most recent releases landed on September 20, 2026 and September 22, 2026 respectively.

Scorecard6 real differences · 5 level
BLEASS Shimmer versus NuRack Auv3 FX Processor: the parameters behind the verdict, then further details
ParameterBLEASS ShimmerNuRack Auv3 FX Processor
Price$6.99 — better$12.99
Rating4.9 (36 ratings) — better4.7 (42 ratings)
Positive reviews100.0% of reviews — better84.4% of reviews
Number of ratings3642 — better
Update frequencyEvery 10 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
Best chart rank#186 — better—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.013 — better
Further details — not scored
Size21 MB26 MB
Age rating4+4+
DeveloperBLEASS4Pockets.com

Customer experience

BLEASS Shimmer

All ratings36 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews12 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

NuRack Auv3 FX Processor

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

In-app purchases

None

BLEASS Shimmer

No in-app purchases

None

NuRack Auv3 FX Processor

No in-app purchases

Questions

Is BLEASS Shimmer free?
BLEASS Shimmer costs $6.99, with no in-app purchases.
Is NuRack Auv3 FX Processor free?
NuRack Auv3 FX Processor costs $12.99, with no in-app purchases.
Which has better reviews, BLEASS Shimmer or NuRack Auv3 FX Processor?
BLEASS Shimmer is rated higher. BLEASS Shimmer averages 4.9 out of 5 from 36 ratings, while NuRack Auv3 FX Processor averages 4.7 from 42 ratings.
Do BLEASS Shimmer or NuRack Auv3 FX Processor have ads?
Neither BLEASS Shimmer nor NuRack Auv3 FX Processor shows ads.
Which is updated more often, BLEASS Shimmer or NuRack Auv3 FX Processor?
BLEASS Shimmer ships an update every 10 months, and NuRack Auv3 FX Processor every 3 weeks. Most recently, BLEASS Shimmer was updated on September 20, 2026 and NuRack Auv3 FX Processor on September 22, 2026.

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