Comparison

Uber Synth vs milliVerb

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

Head to head
About

Uber Synth

This app offers a polyphonic multi-timbral FM synthesizer for iOS devices. It features a triple-oscillator sound engine with five distinct multi-timbral options for creating evolving and complex soundscapes. Supports Audiobus for integration with other music apps.

Highlights
  • Polyphonic multi-timbral FM synthesizer
  • Triple-oscillator cross-modulated FM engine
  • Five multi-timbral options
  • Sound map and sound palettes
  • Evolving sound generation
  • Audiobus support
Features
Read full description

Uber Synth is a polyphonic multi-timbral frequency modulated (FM) synthesizer that runs on any iOS device. The underlying sound engine is based on the triple-oscillator cross-modulated FM synthesizer first introduced in our xMod app. Uber Synth provides five multi-timbral options: 1) Mix the sounds of any two sound patches, 2) combine patches using the sound map, 3) Generate specified as well as randomized sound palettes across the keyboard, 4) Specify a region in sound space centered on a sound and move a point by a variable randomized amount within the region each time you play a note to create an evolving mix of the center sound and the sound nearest the point. 5) Do the same as above moving the point automatically at a specified rate. Supports Audiobus.

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

Uber Synth4 screens
milliVerb4 screens

Verdict

The call

The clearest difference is review sentiment: milliVerb at 100% against Uber Synth's 50%. milliVerb also leads on price (Free vs $3.99) and rating (5.0 vs 2.0). Uber Synth's advantage is in-app purchases (none vs 1) and iOS requirement (14.0 vs 16.0). On ratings volume, ads and device support 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

milliVerb is free to download; Uber Synth costs $3.99 up front. milliVerb sells 1 one-off in-app purchase. Uber Synth asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

milliVerb holds the better App Store score, 5.0 against 2.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively. Written reviews point the same way: 50% of Uber Synth's written reviews are positive against 100% of milliVerb's.

UpkeepUpdate frequency

Uber Synth ships an update every 3 months, milliVerb every 5 days. The most recent releases landed on October 15, 2026 and October 8, 2026 respectively.

Scorecard7 real differences · 3 level
Uber Synth versus milliVerb: the parameters behind the verdict, then further details
ParameterUber SynthmilliVerb
Price$3.99Free — better
Rating2.0 (1 ratings)5.0 (1 ratings) — better
Positive reviews50.0% of reviews100.0% of reviews — better
Number of ratings11
Update frequencyEvery 3 monthsEvery 5 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidFree with in-app purchases — better
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS14.0 — better16.0
Further details — not scored
Size7 MB5 MB
Age rating4+4+
DeveloperMark CarlottoAngelo Milli

Customer experience

Uber Synth

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews8 reviews
Positive50.0%
Neutral12.5%
Negative37.5%

milliVerb

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Uber Synth

No in-app purchases

1 purchases

milliVerb

One-time1
  • milliVerb Full$7.99

Questions

Is Uber Synth free?
Uber Synth costs $3.99, with no in-app purchases.
Is milliVerb free?
milliVerb is free to download, with in-app purchases available.
Which has better reviews, Uber Synth or milliVerb?
milliVerb is rated higher. Uber Synth averages 2.0 out of 5 from 1 ratings, while milliVerb averages 5.0 from 1 ratings.
Do Uber Synth or milliVerb have ads?
Neither Uber Synth nor milliVerb shows ads.
Which is updated more often, Uber Synth or milliVerb?
Uber Synth ships an update every 3 months, and milliVerb every 5 days. Most recently, Uber Synth was updated on October 15, 2026 and milliVerb on October 8, 2026.

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