Comparison

Sparse Neural FX Modeler vs milliVerb

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

Head to head
About

Sparse Neural FX Modeler

Features
Read full description

Plug in and play through real amplifiers, captured with neural networks and reproduced live on your iPhone. Amber Neural FX Modeler models the sound of tube amps sample by sample. Pick from 25 captures — chiming Vox, clean Fender, cranked Deluxe Reverb, vintage fuzz — and play them in real time with latency low enough to feel like the amp is in the room. THE PEDALBOARD Twenty blocks you arrange in any order: up to four neural amps in one chain, drive, tape echo with wow and flutter, shimmer reverb, compressor, gate, wah, phaser, flanger, chorus, tremolo, EQ, octave, delay, and a convolution reverb. Drag blocks to reorder the signal path. Save and load your rigs as presets. RECORD YOUR TAKES One tap records both a dry and a processed track straight into the Files app. BUILT ON RESEARCH The engine comes from a published paper on efficient real-time neural amp modeling — the same models, running entirely on your device. No ads. No accounts. No data collected. Plug in a guitar through any audio interface, or just use the mic. Capture names identify the amplifiers the models were measured from; no affiliation or endorsement is implied.

About

milliVerb

Transform your iPhone or iPad into a professional reverb processor for live audio. Shape rich algorithmic spaces in real-time, visualize your reverb with a spectral display, and control parameters with MIDI. Ideal for musicians and vocalists seeking immersive sound.

Highlights
  • Real-time reverb shaping
  • Spectral display visualization
  • MIDI control and tempo sync
  • Live audio processing
  • Feedback cancellation
  • Customizable presets
Features
Read full description

Carry the venue in your pocket. milliVerb turns your iPhone or iPad into a responsive, performance-ready reverb processor for musicians, vocalists, and sound explorers. Send live microphone audio through rich, fully wet algorithmic spaces that you can shape while you perform. DESIGNED TO BE PLAYED • Shape size, decay time, pre-delay, diffusion, damping, tone, and filtering in real time • Explore studio rooms, chambers, concert halls, churches, and expansive atmospheric spaces • Sculpt low-, mid-, and high-frequency decay directly over the live spectrum • Add movement using multiple modulation styles, adjustable depth and rate, tempo sync, or incoming MIDI clock • Use envelope and ducking controls to make the reverb respond dynamically to your performance • Control parameters and step through presets using MIDI CC and compatible foot controllers • Unlock custom presets, favorites, and performance sets with the full version . SEE YOUR REVERB The real-time spectral display provides an animated view of the processed reverb tail. Turn your device sideways for an expanded panoramic visualization, or use the interactive decay-band editor to shape frequency-dependent reverb behavior directly over the spectrum. BUILT FOR LIVE SOUND Keep input, output, and the live spectrum visible while you perform. Input compression helps manage incoming dynamics, while Apple Voice AEC, advanced adaptive feedback cancellation, optional dynamic protection, and venue calibration help reduce feedback in challenging acoustic environments. MADE FOR CONTINUOUS USE The full version can keep milliVerb processing during rehearsals and performances with optional background and locked-screen audio. You can also prevent the screen from automatically locking while the reverb is running. TRY IT FREE Practice with milliVerb in free 60-second audition sessions. A one-time in-app purchase unlocks uninterrupted live processing, background audio, custom presets, favorites, and performance sets.

Screenshots

Sparse Neural FX Modeler2 screens
milliVerb4 screens

Verdict

The call

The clearest difference is in-app purchases: Sparse Neural FX Modeler at none against milliVerb's 1. On price, ads, device support and iOS requirement 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

Both are free to download. milliVerb sells 1 one-off in-app purchase. Sparse Neural FX Modeler asks for nothing beyond the download.

Scorecard1 real difference · 9 level
Sparse Neural FX Modeler versus milliVerb: the parameters behind the verdict, then further details
ParameterSparse Neural FX ModelermilliVerb
PriceFreeFree
Rating—5.0 (1 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—1 — better
Update frequency—Every 5 days
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.016.0 — better
Further details — not scored
Size5 MB5 MB
Age rating4+4+
DeveloperEli SilversteinAngelo Milli

In-app purchases

None

Sparse Neural FX Modeler

No in-app purchases

1 purchases

milliVerb

One-time1
  • milliVerb Full$7.99

Questions

Is Sparse Neural FX Modeler free?
Sparse Neural FX Modeler is free to download, with no in-app purchases.
Is milliVerb free?
milliVerb is free to download, with in-app purchases available.
Do Sparse Neural FX Modeler or milliVerb have ads?
Neither Sparse Neural FX Modeler nor milliVerb shows ads.

Other comparisons