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

Built by Eli Silverstein and Ryota Sato. Open-source acknowledgements: NeuralAmpModelerCore (MIT, Steven Atkinson), nlohmann/json (MIT, Niels Lohmann), Eigen (Apache 2.0), OOPer audio utilities (BSD 2-Clause), Apple aurioTouch sample code.

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

milliVerb turns your iPhone or iPad into a real-time reverb instrument for voice, instruments, and other live sound. Shape the effect as you play with hands-on controls designed for performance. • Build a space with expressive reverb and modulation controls. • Shape tone with a visual EQ, including filters and adjustable bands. • Tune low-, mid-, and high-frequency decay independently. • Use adaptive feedback EQ to reduce persistent resonances. Feedback depends on the room, speakers, microphone, and volume; protection cannot guarantee that feedback will never occur. • Record a dry take on demand, then audition it with reverb and adjust the mix. milliVerb’s live processing, recording, playback, and factory presets are free to use without a session timer. milliVerb Full is an optional one-time purchase that unlocks dry WAV saving, processed-mix export, and custom presets, favorites, and performance sets. Restore a previous purchase in Settings. Recording starts only when you tap Record. Takes are stored in the on-device Recordings library. Exporting or sharing is initiated by you.

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. milliVerb's advantage is update cadence (weekly vs every 2 months). 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.

UpkeepUpdate frequency

Sparse Neural FX Modeler ships an update every 2 months, milliVerb weekly. Both last shipped on October 31, 2026.

Scorecard2 real differences · 8 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 frequencyEvery 2 monthsWeekly — better
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.016.0 — better
Further details — not scored
Size8 MB6 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$4.99

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.
Which is updated more often, Sparse Neural FX Modeler or milliVerb?
Sparse Neural FX Modeler ships an update every 2 months, and milliVerb weekly. Most recently, Sparse Neural FX Modeler was updated on October 31, 2026 and milliVerb on October 31, 2026.

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