Uber Synth vs milliVerb
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
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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.
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.
- Real-time reverb shaping
- Spectral display visualization
- MIDI control and tempo sync
- Live audio processing
- Feedback cancellation
- Customizable presets
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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
Verdict
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
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.
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.
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.
| Parameter | Uber Synth | milliVerb |
|---|---|---|
| Price | $3.99 | Free — better |
| Rating | 2.0 (1 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 50.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 1 | 1 |
| Update frequency | Every 3 months | Every 5 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | Free with in-app purchases — better |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 14.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 7 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | Mark Carlotto | Angelo Milli |
Customer experience
Uber Synth
milliVerb
In-app purchases
Uber Synth
No in-app purchases
milliVerb
- milliVerb Full$7.99









